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Members Night (Apr 10): Movie Night
Skills Testing (Apr 12): Next chance to unlock your skills
Event Shirts Available: Limited Sindalu Ninja Games shirts still in stock
Gym Reminder: Closed Thursdays
A big thank you to all the campers and families who joined us. We love seeing so many kids staying active and challenging themselves.
If you missed this camp, keep an eye out for future camps and school break events throughout the year.
👕 Sindalu Ninja Games Event Shirts Still Available
Missed out on the event shirt or want an extra?
We still have a limited number of official Sindalu Ninja Games shirts available.
👉 Stop by the front desk to grab yours before they’re gone.
📈 Skills Testing – April 24
Skills Testing is your next opportunity to demonstrate progress and move up in our Level Up system.
Athletes will be evaluated by coaches to track their development and advance to the next level.
If you've been working hard in class, this is your time to show your progress and level up.
🎮 Members Night – April 10
Movie Night - Wear comfy PJ's and bring your blankets/pillows
Watch a fan favorite film on the big screen, feel the fun atmosphere with friends and family.
Gold Members: Free
Non - Members: $5
It's the perfect way to hang out and connect with the Ninja community.
📅 Gym Reminder
As a reminder, the gym is closed on Thursdays. We will also be closed on Sundays starting Apr 19 2026
This allows time for facility maintenance, staff training, and program development as we continue improving the gym for our athletes.
Thank you for your continued support! 🥷

As Guam’s first and only ninja warrior gym, we’re creating something special — a safe, high-energy space where kids, teens, and adults challenge themselves, overcome fear, and grow stronger inside and out.
From structured ninja classes and open gym sessions to epic events like the Sindalu Ninja Games, our programs are built to inspire, empower, and transform.
Join a community that lifts you up, pushes you forward, and celebrates every victory — big or small.
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Check out the most frequently asked questions about Guma i Sindalu Siha, LLC.
Still haven't found the answer?
Contact UsOur gym is open to athletes ages 6 and up (seperate youth and Adult Classes). For safety and insurance, we do not currently offer classes for younger children.
Not at all!
Our gym is built for all fitness levels. Whether you're new to exercise or an experienced athlete, we’ll meet you where you are. Every obstacle can be scaled or modified to suit your ability, and our supportive coaches are here to guide you every step of the way.
Please wear closed-toe, lace-up athletic sneakers with a rubber sole.
🚫 Not allowed:
Cleats or spiked shoes
Flip flops, zorries, Crocs, or sandals
Indoor soccer shoes, hiking shoes, or boots
All birthday party participants and parents NEED to be wearing clean tennis, running, or athletic shoes. We are a SHOES ON facility. No crocs, slip-on, sandals, heels, or boots will be allowed.
We offer structured ninja classes for athletes ages 6 and up, divided by age and skill level:
Our youth program is split into two training paths:
Youth Novice (Levels 1–3) –Ages 6–11
Focuses on foundational skills, safety, and confidence-building through fun and engaging challenges.
Youth Advanced (Levels 4–6) – Ages 12–15
Introduces more technical skills, obstacle sequencing, and preparation for competitive events.
For beginners to advanced adults (and teens 16+), these classes are built for challenge, progress, and long-term growth.
Each level focuses on strength, endurance, technique, and leadership development — whether you're training recreationally or aiming for competition.
All athletes are placed into the appropriate level after an initial assessment or based on performance in class. Everyone has the opportunity to “level up” through our skills-based progression system.
Absolutely! Celebrate with obstacle-based fun in our gym—complete with coach-led activities, team challenges, and equipment use. Contact us to book your date and go over party packages.
Our Level Up Program is a structured training system that helps you progress through skill-based levels — just like earning belts in martial arts!
It includes:
🧠 Skill System – Learn core ninja skills and test your progress.
🧗 Level Placement – Train in the right class for your current ability.
🏅 Assessments & Promotions – Regular check-ins to celebrate your growth.
🎯 Motivation & Milestones – Clear goals and fun ways to level up.
It’s the perfect path for athletes who want to build confidence, track progress, and get stronger over time.
This is drop-in time where members can train independently on the obstacles or practice skills. A coach is on-site to assist, but sessions are self-guided.
Wear athletic clothes and lace-up sneakers (closed-toe, non marking shoes required), no crocs, slides, hiking, cleats, steel toe, etc. allowed. Bring lots of water, while we do not have a water refill station, we have bottled water for purchase for your convenience. Outside food can't be consumed on the gym floor.
Please cancel at least 6 hours before your class to avoid penalties. No-shows or late cancels may result in a fee and a loss of a session.
Yes, we run seasonal camps (like summer camp) and workshops focusing on areas like obstacle technique, strength, and your ninja mindset.
You can register for our competitions, including the Sindalu Ninja Games, directly through our website or in person at the gym.
We host quarterly events and national qualifiers, and members receive priority registration and exclusive discounts.
Accidents happen! We ask families and members to be responsible and report any issues. Damage caused by misuse may result in repair fees.
Birthday parties, Camps and special events with food must be scheduled in advance.
Otherwise, no food is allowed. Drinks are allowed, but only in approved areas as we want to keep our obstacles clean and safe for everyone! We ask that all drinks be kept in designated areas.
For safety and hygiene, no food or beverages are allowed in the ninja or weight training zones and to make sure hands are clean before getting back on the obstacles.