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Best Ninja Backyard Slackline obstacle course | 2021 Update

boy playing on obstacle course

I’ve found the best backyard obstacle course. Your kids will love being Ninjas and having a lot of fun. To make finding the perfect ninja slackline easy for you, We recommend you take a look at the Slackers Extreme Ninja line kit first.

The Slackers Ninja line kit is the best all round ninja line because I think it is more fun than the Sportstrail and Flybold ninja lines and has the best variety of attachments.

Slackers Extreme Ninjaline Kit (30' & 50' Varieties) (50')

Click the image to view Slackers extreme Ninjaline kit on Amazon

Ninja slackline comparison table

Our favourite backyard obstacle courses
Quality slackline course
Ninja Warrior Obstacle Course for Kids 50' Slackline Kit, Jungle Gym Monkey Bars Kit for Kids and Adults, Kids Outdoor Play Equipment, Warrior Training Equipment, Playground Set for Backyard
Heavy Duty Line
Ninja Warrior Obstacle Course for Kids Slackline Kit Ninja Warrior Training Equipment for Kids with Adjustable Obstacles Monkey Bars Gym Rings Perfect for Outdoor Backyard Fitness for Adult Family 40'
Popular branded choice
Slackers NinjaLine 36' Intro Kit
Which accessories are included
Monkey line, 2 gymnastics rings, 2 wooden bars, 2 knots, climbing rope.
4 gymnastics rings, 2 fist holds, 2 monkey bars,
gymnastics rings, gymnastics bars, rope knot grips.
Who this slackline course is suitable for
Adults & children ( 440lb weight limit when attached correctly)
300lbs weight limit.
Children ( 250lbs weight limit )
Why we recommend this course
Long, ratchet makes attachment to trees easy. variety of accessories.
long 40ft slackline, low price, quality slackline design.
Lots of optional add-ons available and comes in a variety of different lengths.
Quality slackline course
Our favourite backyard obstacle courses
Ninja Warrior Obstacle Course for Kids 50' Slackline Kit, Jungle Gym Monkey Bars Kit for Kids and Adults, Kids Outdoor Play Equipment, Warrior Training Equipment, Playground Set for Backyard
Which accessories are included
Monkey line, 2 gymnastics rings, 2 wooden bars, 2 knots, climbing rope.
Who this slackline course is suitable for
Adults & children ( 440lb weight limit when attached correctly)
Why we recommend this course
Long, ratchet makes attachment to trees easy. variety of accessories.
More information
Heavy Duty Line
Our favourite backyard obstacle courses
Ninja Warrior Obstacle Course for Kids Slackline Kit Ninja Warrior Training Equipment for Kids with Adjustable Obstacles Monkey Bars Gym Rings Perfect for Outdoor Backyard Fitness for Adult Family 40'
Which accessories are included
4 gymnastics rings, 2 fist holds, 2 monkey bars,
Who this slackline course is suitable for
300lbs weight limit.
Why we recommend this course
long 40ft slackline, low price, quality slackline design.
More information
Popular branded choice
Our favourite backyard obstacle courses
Slackers NinjaLine 36' Intro Kit
Product name
Which accessories are included
gymnastics rings, gymnastics bars, rope knot grips.
Who this slackline course is suitable for
Children ( 250lbs weight limit )
Why we recommend this course
Lots of optional add-ons available and comes in a variety of different lengths.
More information

Are you an adult wanting to take part in Tough Mudder and train in your own garden or a parent looking to add some exciting obstacle course equipment to keep the kids entertained while getting lots of exercise jumping across stepping stones or swinging along a Ninja line in the back yard?

We have you both covered With our advice for creating a back yard Ninja line and reviews of all the pieces of equipment, monkey bars and slacklines that are available to buy.

What is a backyard obstacle course ?

It is a set of different pieces of equipment that test your agility, balance, endurance and strength. You have to move between apparatus by swinging on monkey bars or other attachments, jumping, climbing, vaulting or sliding without falling off.

A Ninja obstacle line is a slackline that usually attaches between 2 posts or trees using tree protectors. This type of backyard Ninja course has ninja obstacle attachments that hang from the rope at the top. These can include money bars, a spinning wheel, gymnastic rings and other upper body strength attachments.

A backyard ninja course is sometimes known as a Ninja Line or kids Slackline because Ninjas can move around obstacles quickly and without being seen just like in the famous Ninja warrior TV show.

Now it is possible to bring ninja obstacle fun into your own back garden with the introduction of so many new pieces of adventure equipment that you can add into your garden and create a fun course for kids. Using backyard obstacles is a great way to create your own garden adventure course.

Some companies sell a package of obstacles connected on a Ninja line but it can be sometimes a good idea to buy separate obstacles if you want to design a layout that your kids will love and have the freedom to change the order of the challenges if you don’t have a tree to attach them to.

Top Choice Ninja Warrior course

We have found some great ninja obstacle course sets. Some are smaller and safe for children to play on but there are also some aimed at older kids, teenagers and adults who enjoy a challenging upper body strength workout that requires strength, endurance and agility.

 1. Slackers extreme Ninjaline kit

Slackers Extreme Ninjaline Kit (30' & 50' Varieties) (50')

Click the image to view Ninja line on Amazon

The Slackers Ninja line is our top choice because their are a lot of fun attachments that and have been designed with a kids grip in mind. The size of the rope knot attachments, monkey bars and the Ninja ring are all the perfect size for a child and offer a challenging activity that’s not too easy or difficult.

The 250lb limit is lower than a lot of Ninja lines but it’s perfect for children, it doesn’t try to be suitable for adults too, it’s an exciting children’s toy and Slackers Ninja line doesn’t try to do too much, it does exactly what children want from it, which is a ninja obstacle course that’s colourful and fun.

You have the choice of buying the 30ft or 50ft length of nylon rope and both come with a 6ft ratchet line and ratchet with TAR handles. The sewn pockets are positioned along the line spaced out in 14 different positions so you can choose where the carabiner attachments fasten onto it and then the attachments strap on.

Attachments

With the slackers garden Ninja line you receive 3 10″ nylon rope knot attachments. These are quite small but very strong and are similar in nature to a ball grip but just a little bit softer than those you might find on larger ninja warrior courses.

The next attachments are the two 16″ long monkey bar attachment that are made from birch wood. The wooden bar hangs from two pieces of rope and is long enough to grip onto with two hands. Over time this is the attachment most likely to wear if left outside.

Finally you also receive two steel gymnastic rings that have an ABS grip that does a pretty good job of stopping your hands slipping off. If you want extra grip read our article about gloves that are for monkey bars.

Using the two gymnastics rings feels comfortable and they are heavy enough so that they swing in a realistic way that allows you to use your core strength to bring them under control and give yourself a tough body weight workout.

Overall we really like the slackers ninja line because it is well made and includes a lot of fun attachments. Some of the packages available from Slackers include a cargo net, please be aware that this is often quite long and might take up a lot more of your line space than you expected and leave less room for attachments so make sure you read the small print before purchasing.

Slackers Ninja Line key features:

PROS

  • You can purchase additional attachments if you wish to expand the course.
  • The attachments, line and ratchet are all heavy duty quality pieces of equipment.

CONS

  • Be sure to attach the carabiner attachments before tightening the line otherwise it will be very difficult to fit them in place.
  • The Cannonball shaped knotted grips are a little small for an adults hand to grip comfortably but they are still usable.
  • If you want a foot slack line for walking or balancing along with your feet this isn’t a good option for that purpose.

2. SportsTrail Monkey Line


Ninja Warrior Obstacle Course for Kids 50' Slackline Kit, Jungle Gym Monkey Bars Kit for Kids and Adults, Kids Outdoor Play Equipment, Warrior Training Equipment, Playground Set for Backyard

Click image to view current price on Amazon

We have chosen the Sports Trail monkey line because this is a quality piece of kit that can be adjusted to attach between two trees, posts or pillars and has 7 interchangeable obstacle attachments, including monkey bars. The object of this challenging course is to make your way from one end to the other using your arms to grip, swing and support you as you travel along the rope line.

If you don’t already know what a slack line is, it’s a line of strong rope that you attach between two objects and balance your way across it. With this monkey line the obstacles hang from the line so you are going to have to attach it high up using the strong steel ratchet so your feet don’t touch the floor.

The attachments include knotted ropes for gripping onto in order to swing across to the next challenge, trapeze bars, a pair of gymnastic rings like acrobats use and a climbing rope. I like the knots but gripping onto them is tough and takes some getting used to, Sports trail could improve their monkey line by making the knots a little more comfortable to hold onto.

Each attachment connects using a carabiner and a buckle set that can easily be removed and fastened in a different position along the rope. Transferring from a rope attachment onto the trapeze bar is tricky because you have to swing from a forward facing position into a sideways position.

You really need to practice and think your way around the course so you can figure out the best technique to swing between the different attachments.

We love that this kit, which can be up to 30 ft long can be folded into a small bag, slung over your shoulder and carried to your nearest park, for a camping trip into the countryside or a friends house. The main downside we found is that it can take a little while to put up and adjust in order to make sure the line is tight because otherwise the line can become bouncy and much more difficult to navigate across.

Also, for younger children, be aware that to navigate all the way to the end of the course will require some strength and practice but it is still a lot of fun even if you only swing on the trapeze bar or gymnastic rings.

If you purchase the sport trail monkey line be sure to check that the ratchet attachment buckles aren’t welded together and are one solid piece. Older versions of this monkey line used to include buckles that weren’t as secure as the non-welded buckles in newer versions.

Sportstrail Monkeyline Key features:

PROS

  • Includes 7 attachments as standard and more options available to purchase.
  • The high 225 lb weight limit is suitable for both adults and kids to use.
  • Obstacles can be removed if you want to try using the rope line without attachments.
  • 30 ft long.

CONS

  • Completing the whole ninja course will take some practice and require a little patience.
  • Younger kids might not have the strength required to complete all the obstacles.
  • Line flexes a lot so consider raising the height you attach the line.

2. Flybold Ninja Backyard Obstacle line

Ninja Warrior Obstacle Course for Kids Slackline Kit Ninja Warrior Training Equipment for Kids with Adjustable Obstacles Monkey Bars Gym Rings Perfect for Outdoor Backyard Fitness for Adult Family 40'

Click image to view current price on Amazon

Flybold have created a great looking ninja line that is a massive 40 ft long and holds up to 300lbs so it is suitable for both adult and children to attempt to cross. One of the best features of the Flybold line is that when attached correctly it doesn’t sag very much at all and the twin ratchet gear makes fastening and moving the fun attachments easy.

Design

We love the design of the soft green colour line that attaches to the adjustable buckles on one end and combines with the blue ropes that attach to the carabiner on the other end. The buckle system allows you to adjust the position of each attachment and move them closer together or further away depending on how challenging you would like the course to be.

Because of the included ratchet system, with a couple of pulls on the lever you can fasten the buckle adjustments once you’ve positioned the attachment where you would like it.

To attach the slack line itself, the design compliments the use of the wide tree protectors to fasten the rope safely around a tree and protect the tree while doing so. If you want to attach the Flybold rope to another surface it is possible to attach it to a strong post of some kind but we can’t really advise on this, we would just suggest you make sure it is attached to something that is strong and will hold you securely.

Attachments

There are 8 attachments included with this product:

4 gymnastic rings which will have you swinging back and forth like a gymnast while trying to navigate and shift your swing sideways onto the next challenge.

2 Fist holds which are basically big thick knots which are tied at the bottom of a piece of rope so you can grip onto it and swing along. This is very similar to just gripping onto a climbing rope but the knot makes the surface area a little bigger and easier to hold onto.

2 monkey bars – The monkey bar attachments can be gripped onto with two hands but unlike monkey bars you might find at your local park, they are attach by a rope on each end and will swing. Controlling this swing using core strength to change the momentum is key to passing this stage of the course and twisting yourself to face sideways requires practice in order to get the grip position right

Flybold Ninja line key features:

PROS

  • High quality nylon rope line that has dual use as a slackline for balancing along like a tightrope walker and 8 adjustable attachments.
  • Three extra buckle straps included if you want to add more attachments later.

CONS

  • The 40 ft length includes the whole nylon rope so when you fasten it around a tree, depending upon how thick the tree is you will lose some of that overall distance, maybe even up to 5 ft.

Ninja Warrior obstacle course comparison

When comparing the Flybold Ninja line with the Sportstrail monkey line we found that the Flybold Ninja line felt a little bit stronger but the Sportstrail line has better attachments and the option to buy a wider selection of add-ons. Both come in a selection

Backyard Ninja course safety consideration & buyers guide.

Obstacle attachments

Gymnastic rings

Most ninja courses include gymnastic ring attachments. These are challenging because you can only grip onto each ring with one hand and the ring will move and swing back and forth a lot. Using a gymnastics ring successful can require some abdominal muscles to help stabilise the motion and arm strength because for a short time you will be holding yourself on with one arm while you use momentum to shift to the next section of the course.

If you are looking for a great upper body workout with all the fun that comes with swinging, adding gymnastic rings to your garden ninja course is a great idea.

Weight limit

Most Ninja warrior course ideas that we have summarised above are suitable for both adults and children. It is important to read and pay attention to the weight limits and also pay careful attention to making sure the tree or structure supporting the rope line is also thick and strong enough so it stays securely in place while you are using it.

FAQ – Ninja backyard obstacle courses

How much does a backyard ninja warrior course cost?

The prices of Backyard Ninja courses usually range from between $50 and $150. For $50 you can expect a basic ninja line that is most likely no longer than 30ft and a set of attachments that are made from cheaper plastic or lower quality materials that are less comfortable to grip onto.

A cheaper priced rope line will often sag a lot more than the better quality expensive nylon lines of the higher priced options. This is often because the ratchet line and ratchet are not strong enough to tighten the line with enough tension so that it stays at a good height above the ground.

The closer to $100 you pay the more likely you are to receive a strong nylon slack line with a heavy duty ratchet system. A heavy duty ratchet with a strong ratchet line will tighten the line and allow you to hang many obstacle attachments from the line without it sagging and drooping towards the ground.

Attachments at the higher price range usually have rubber grip attachments or are made of wood and sealed to make them last longer in their fight against bad weather if left outside.

How do I set up a ninja warrior obstacle course in my backyard?

Firstly you need to work out how big your backyard is and then consider what kind of course you would like and who is going to be using it. If you want to use a Ninja slack line you are going to need two strong anchors to attach the rope to. Usually two large mature healthy trees are the best for attaching the rope to because they can support a lot of weight and pressure and these kits usually include tree protectors so you don’t harm any trees.

If you don’t have trees in your yard it is possible to use some form of concrete or steel posts but be sure you know what you are doing and how much pressure they can safely hold up.


Final Thoughts – How to choose a backyard ninja warrior course

There are so many exciting Ninja courses for kids that it can be difficult to choose one. Flybold, Slackers and Sportstrail are my favourite choices because their slackline kits are ready made with lots of exciting obstacle attachments and a choice of different lengths to suit all garden sizes.

Your little monkeys are going to have a lot of fun competing and turning into little ninjas racing along these courses in your garden. Be sure to choose the right length rope and attachments that are suitable for your kids to safely use and have the strength to navigate their way across.

If you want an exciting ninja obstacle course with lots of attachments, including monkey bars, monkey bar holds, gymnastic rings and rope knots that really test your upper body strength then the Slackers Ninjaline is colourful and fun. If you prefer a simpler experience that also gives you chance to practice and learn to balance your way along a slackline then the Flybold ninja line is a good choice, it also blends into your garden with it’s green colour.

Our favourite backyard obstacle courses
Quality slackline course
Ninja Warrior Obstacle Course for Kids 50' Slackline Kit, Jungle Gym Monkey Bars Kit for Kids and Adults, Kids Outdoor Play Equipment, Warrior Training Equipment, Playground Set for Backyard
Heavy Duty Line
Ninja Warrior Obstacle Course for Kids Slackline Kit Ninja Warrior Training Equipment for Kids with Adjustable Obstacles Monkey Bars Gym Rings Perfect for Outdoor Backyard Fitness for Adult Family 40'
Popular branded choice
Slackers NinjaLine 36' Intro Kit
Which accessories are included
Monkey line, 2 gymnastics rings, 2 wooden bars, 2 knots, climbing rope.
4 gymnastics rings, 2 fist holds, 2 monkey bars,
gymnastics rings, gymnastics bars, rope knot grips.
Who this slackline course is suitable for
Adults & children ( 440lb weight limit when attached correctly)
300lbs weight limit.
Children ( 250lbs weight limit )
Why we recommend this course
Long, ratchet makes attachment to trees easy. variety of accessories.
long 40ft slackline, low price, quality slackline design.
Lots of optional add-ons available and comes in a variety of different lengths.
Quality slackline course
Our favourite backyard obstacle courses
Ninja Warrior Obstacle Course for Kids 50' Slackline Kit, Jungle Gym Monkey Bars Kit for Kids and Adults, Kids Outdoor Play Equipment, Warrior Training Equipment, Playground Set for Backyard
Which accessories are included
Monkey line, 2 gymnastics rings, 2 wooden bars, 2 knots, climbing rope.
Who this slackline course is suitable for
Adults & children ( 440lb weight limit when attached correctly)
Why we recommend this course
Long, ratchet makes attachment to trees easy. variety of accessories.
More information
Heavy Duty Line
Our favourite backyard obstacle courses
Ninja Warrior Obstacle Course for Kids Slackline Kit Ninja Warrior Training Equipment for Kids with Adjustable Obstacles Monkey Bars Gym Rings Perfect for Outdoor Backyard Fitness for Adult Family 40'
Which accessories are included
4 gymnastics rings, 2 fist holds, 2 monkey bars,
Who this slackline course is suitable for
300lbs weight limit.
Why we recommend this course
long 40ft slackline, low price, quality slackline design.
More information
Popular branded choice
Our favourite backyard obstacle courses
Slackers NinjaLine 36' Intro Kit
Product name
Which accessories are included
gymnastics rings, gymnastics bars, rope knot grips.
Who this slackline course is suitable for
Children ( 250lbs weight limit )
Why we recommend this course
Lots of optional add-ons available and comes in a variety of different lengths.
More information

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