I bring my daughter here for classes and she loves it. I finally went myself for adult open gym and had a blast, beat my hands up pretty good but thats on me. The staff are awesome with both kids and adults on guidance and support. Cannot recommend enough and will definitely be coming back both with my daughter and alone.

Both of my children (4&6) attend 605 Ninja Training Academy. Weve done classes, open gym and private training sessions. Every single one of the coaches are amazing to work with. The environment is incredibly positive and professional. We loved being there so much we decided to sign up for private lessons, and we love Coach Boston. It was hard to pick a coach to use for lessons though since they are all so amazing and my kids look up to and admire all of them. I am so appreciative of everything they are teaching my kiddos about Ninja and about life!

Excellent coaches, facility, membership options and so much more. The prices cannot be beat. If your looking to get into shape or get a lot stronger in a fun way, this is it. No more boring same old workouts!

Great place for you kids to have a great time. Something different and very active. Very clean and a very helpful staff

We LOVE this place and all the coaches and staff! They truly care about each student and bringing them to and through the next challenge. Their energy and enthusiasm for this sport is contagious! I cannot speak highly enough of 605 Ninja!! Thank you for bringing this sport to Sioux Falls and for your excellence and professional establishment!

Great classes and camps for kids. Lots of parking spaces, too. It’s a bit hard to find, so keep looking if you can’t find it. It’s worth it!

605 ninja was great. We were in Sioux Falls for the weekend and needed a few an outlet for my daughter. The staff was super friendly and high energy and helped all the kids learn new obstacles while showing off an occasional flip (and failed flip)

This was the first time here. It was for my grandsons birthday party. They closed it to the public so we could have a private party. It was very nice. They explained to the kids all the obstacles. The kids had a blast. They even helped clean up.

This place is so much more then just a Ninja class. All three is my kids have grown SO much in their confidence and belief that they can do hard things! They look forward to each class and I have always been so impressed with the coaches that are consistently there building up my kids!

This place is awesome! My kids love it and are always asking to come back. I think thats a sign that you are doing something right!

Challenging for any age. Best place for kids to learn and grow physically and mentally while having a blast and building self confidence. Great owner and coaches who are always encouraging and meet each kid at their individual skill level.

605 Ninja has been amazing for both of my kids. One is athletic while the other was not but the coaches were able to meet both where they were at and encourage them as they got stronger. Each of the coaches has their own personality but all are positive, engaging, and knowledgeable.

My kids love 605 Ninja! They don’t all enjoy “sports”, but Ninja is different and they all have fun regardless of their athletic ability. All of the coaches are awesome - super fun and encouraging. Highly recommend!

Wonderful and caring staff. My 7 Year Old loves to go to their classes, open gym and anytime they have kids night out! Everything they offer is 5/5 stars and you could not ask for a better environment.

Very nice clean and very helpful friendly staff. Highly recommended going!

This is a place my kids always ask to go to! The people are fantastic with them and they are very helpful.

My son (6) has been attending 605 Ninja Academy and he absolutely adores it. The staff/trainers are incredible with children and really encourage the kids to push themselves in a fun way. I would give them 6 stars if I could!

I have 2 children who go to Ninja605. The coaches are very encouraging and supportive, no matter the skill level

My daughter loves jason and his staff. She has such a good time swinging around like a monkey. A great getaway from screen time.

I do silks there weekly! started in January and became completely addicted. Katie is an AMAZING instructor as is Kayla (although Ive yet to have a class with her, I see her private lessons often) its an amazing workout and really good for mental health. I see the kids doing ninja when Im there too and all the ninja coaches are so encouraging to the kids! I cant wait until my toddler is older!!! 20/10 would recommend

This is a awesome place for kids and adults to come and train/ play around on obstacles and really friendly staff.

My son has gained so much confidence and so many skills at this gym! We love 605 ninja!

We took a group of boys there for open gym and it was amazing!! Everyone had a blast, staff was great...would highly recommend! We will be back again!

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Amazing coaches for kids! Encouraging, rigorous, and build relationships while pushing kids!

We love 605. All of the teachers are so good with kids and you can tell they really love their jobs and they actually get to know each kid!

This place is so supportive.

Love this place! Coaches are great with beginners and with the advanced Ninjas. They inspire and build people up! My kids love going to class , kids night out, competitions, camps. Anything that they put on they want to go to!

Staff does not follow their own covid safety protocol as posted on the website.

We had a birthday party today at 605 Ninja. This was my first time there, and my sons second. Im impressed! It was a cool setup all around. There was a good variety of challenges for all ages. The party itself was run very well and easily kept a group of 11 first graders engaged excited. I enjoyed a brief chat with the owner, and it is clear that he and his wife LOVE what they do. We will definitely come back!

605 Ninja is the Best facility in training and preparing our Ninja family for competition!!!

Fun and helpful staff. Great for kids birthday party

Awesome facility and even better people!

For the one-hour we were here, the 12-foot ramp is closed for a class that, after a while, moved to another area closing that section, which is further compounded by the silk rope dancer training. The kids (ages 8, 10, 11, 13, 17) had fun but became bored quickly with the childrens area, and some can barely start the other side. Overall, I feel we should have gone to Sky Zone instead, but we wanted to try something new. Probably will not be going back.

Amazing Staff, fun safe and clean place for my kids to learn new skills and burn off some energy! Would recommend to everyone! Love this place!

Cant say enough about what this place means to my son. Brought out his inner athlete in a way no other sport comes close. His confidence, strength, and mental toughness have shot through the roof since he started just a few months ago.If/when my family ever leaves Sioux Falls, 605 Ninja Academy will easily be the most irreplaceable thing wed have to leave behind.

Jason and the entire staff at 605 Ninja Academy are awesome! They teach with compassion and an energy that is infectious. The gym emenates positivity, determination, and a love for overcoming challenges that life gives us. The classes are very affordable and they bring out the best in our kids. We also love open gym - everyone leaves exhausted and exhilarated. Pretty sure birthday parties are going to be at 605 Ninja this year!

We took an 11 year old boy there. He started around 4 15 after signing the waiver and he was shown all the equipment. We were charged for an hour and he had to quit at 5, because there was a class starting. He was the only person using the equipment and asked alot of questions, which they were good at answering his questions. They encouraged him on the equipment. Its too bad that it wasnt more structured with like an obstacle course with what he should do, etc... The adults running it were busy talking and doing things instead of directing him. It was open gym and he got bored after a while and quit before 5, since he was the only child there. He isnt interested in going back there again.

The coaches are great. They are so good with the kids! The atmosphere is fun and the owners go out of their way to make sure everyone is safe and feels comfortable in the space. Also, the open gym pass is a GREAT way (especially in the summer) to burn the kids energy!

Great people own and operate this local business. Fun experience for kids, with weekly classes and tons of obstacles and stations.

Amazing coaches and an amazing place! They have a great assortment of obstacles and their classes for kids are top notch. Highly recommend giving them a call and getting children signed up for their weekly classes.

605 hosted a competition and the staff were very nice. The gym is spacious and has plenty of tables to sit down and bleachers to watch the comps. The owner Jason was very encouraging to the kids and the course was good.

I took my 3 kids age 11, 9, 8 and we all had a blast. I even joined in on the fun. The owner was amazing with the kids and extremely helpful in giving them tips when doing Open Gym. A great way to burn off energy and build self esteem and confidence with tasxkling the obstacle courses.

Truly a ninja gym! I’ve got two rough and tumble boys and this wore them both out! Passionate, professional, and energetic staff. Very clean gym with real ninja obstacles. This would be a really fun gym for adults to do a drop-in workout as well! My oldest son says, “there’s no better feeling in the world than getting up the wall!” My moody tween left feeling excited and confident....what parent doesn’t love to see that!

This place is fantastic!!! Kids can be kids and as adventurous as they are confident in being. Jason is encouraging the kids to push themselves, and they respond!!! I will definitely be back

This place is so great! I love the way they teach the kids - learning life lessons within the classes - and the employees and owners are so great to work with!

Love the patience that the coaches have

Great place to let the kids try numerous “ninja” skills. Entertaining and wonderful environment for any time of the year. 👍

Awesome gym with lots of obstacles. The staff is fantastic. We’ve enjoyed classes, competitions, open gym, and birthday parties.

Kids Night out events every month! Kids have a blast and instructors are engaging!

Excellent staff and equipment My daughter absolutely loves going to class every week! Jason and all the coaches do such a great job building confidence in their students.

Fun place for kids and adults! Good equipment and nice staff.

This place is awesome! This is the one place my son asks if we can go to.

What an awesome place! Great one on one with my kids. Would definitely recommend the camps!

Kids had a great time, and the owner was very helpful. Great environment for kids

Simply amazing. Great place to get kids and adults moving!

Steinbergs do an amazing job!! Fun and definitely challenging. We will be back!

Great staff who is outstanding with kids

Fun place for my boys to play the day before school starts. Great price and staff.

Great people, great gym!

This is a cool place for kiddos to be active.

Cool place.

Kids ages 7, 6, and 5 had a BLAST. The owners are incredibly passionate and are great with kids.

Good competent staff. Kids had a great time.

Always a great time for the kids

My 8 year old loves open gym and aerial silks class!

Its a great place and the owner Jason is a really cool, fun guy!

Friendly staff! Kids loved it!

Kids have alot fun and friendly staff!

Love this place

Great place, my grandson loves it.

Friendly and welcoming staff

Great staff, very encouraging to push yourself, yet have fun!

My daughter loves Open Gym & the classes they offer

Great place for the Kids.

Did a silks class there.

Kids love it!