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Board Game Night — Connect & Compete
Track Progress. Build Confidence. Level Up.
Our monthly Skills Testing helps athletes:

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.
Introductory-level class designed for beginner ninjas.
This class focuses on developing coordination, balance, strength, and confidence through fun and safe obstacle challenges. Perfect for first-timers or younger athletes learning the basics of Ninja Warrior-style movement. Each week includes skill progressions and age-appropriate drills that promote focus and body control.
🔹 No experience needed
🔹 Capped at 8–10 students per instructor for safety and engagement
IMPORTANT: Please use participants name when booking
This day is marked as closed. Reopen the day to edit or restore sessions.
Progressive-level class for returning or older youth ninjas.
This class introduces more complex techniques, strength conditioning, and dynamic obstacles. Athletes build on foundational skills while working on grip strength, precision, and strategy. Suitable for students with prior ninja experience or athletic background in gymnastics, parkour, or climbing.
🔹 Coach approval or prior experience recommended
🔹 Focused on skill-building and competition prep
🔹 Capped at 10–12 students per instructor
IMPORTANT: Please use participants name when booking
This day is marked as closed. Reopen the day to edit or restore sessions.
Strength & conditioning designed specifically for Ninja Warrior training.
Ninja Fit is a semi-private group workout built to develop the strength, endurance, and grip needed to conquer ninja obstacles. Whether you're new to fitness or looking to level up your performance, this class focuses on functional movements that directly translate to success on the course.
Expect a mix of bodyweight training, grip work, core stability, explosive power, and conditioning circuits—all programmed with ninja athletes in mind. Workouts are scalable, so beginners can build a solid foundation while experienced athletes push their limits.
This is where you build the engine behind your ninja skills.
🔹 All fitness levels welcome
🔹 Focused on strength, endurance, and injury prevention
🔹 Perfect complement to Ninja classes or OCR training
🔹 Semi-private setting for more coaching and attention
This day is marked as closed. Reopen the day to edit or restore sessions.
Skill Progression
Level up your ninja skills at your own pace! This session is designed for members to practice techniques, refine movements, and progress through our signature “Level-Up” program. Whether you’re perfecting a tricky obstacle or building strength and confidence, our safe and supervised open gym environment lets you challenge yourself, track your progress, and improve your ninja skills.
IMPORTANT: Please use participants name when booking
This day is marked as closed. Reopen the day to edit or restore sessions.
Introductory-level class designed for beginner ninjas.
This class focuses on developing coordination, balance, strength, and confidence through fun and safe obstacle challenges. Perfect for first-timers or younger athletes learning the basics of Ninja Warrior-style movement. Each week includes skill progressions and age-appropriate drills that promote focus and body control.
🔹 No experience needed
🔹 Capped at 8–10 students per instructor for safety and engagement
👟 Non-marking tennis shoes with laces are required.
(Strict no slip on shoes policy will be enforced)
This day is marked as closed. Reopen the day to edit or restore sessions.
Progressive-level class for returning or older youth ninjas.
This class introduces more complex techniques, strength conditioning, and dynamic obstacles. Athletes build on foundational skills while working on grip strength, precision, and strategy. Suitable for students with prior ninja experience or athletic background in gymnastics, parkour, or climbing.
🔹 Coach approval or prior experience recommended
🔹 Focused on skill-building and competition prep
🔹 Capped at 10–12 students per instructor
This day is marked as closed. Reopen the day to edit or restore sessions.
Skill Progression
Level up your ninja skills at your own pace! This session is designed for members to practice techniques, refine movements, and progress through our signature “Level-Up” program. Whether you’re perfecting a tricky obstacle or building strength and confidence, our safe and supervised open gym environment lets you challenge yourself, track your progress, and improve your ninja skills.
IMPORTANT: Please use participants name when booking
This day is marked as closed. Reopen the day to edit or restore sessions.
Introductory-level class designed for beginner ninjas.
This class focuses on developing coordination, balance, strength, and confidence through fun and safe obstacle challenges. Perfect for first-timers or younger athletes learning the basics of Ninja Warrior-style movement. Each week includes skill progressions and age-appropriate drills that promote focus and body control.
🔹 No experience needed
🔹 Capped at 8–10 students per instructor for safety and engagement
This day is marked as closed. Reopen the day to edit or restore sessions.
Progressive-level class for returning or older youth ninjas.
This class introduces more complex techniques, strength conditioning, and dynamic obstacles. Athletes build on foundational skills while working on grip strength, precision, and strategy. Suitable for students with prior ninja experience or athletic background in gymnastics, parkour, or climbing.
🔹 Coach approval or prior experience recommended
🔹 Focused on skill-building and competition prep
🔹 Capped at 10–12 students per instructor
This day is marked as closed. Reopen the day to edit or restore sessions.
Strength & conditioning designed specifically for Ninja Warrior training.
Ninja Fit is a semi-private group workout built to develop the strength, endurance, and grip needed to conquer ninja obstacles. Whether you're new to fitness or looking to level up your performance, this class focuses on functional movements that directly translate to success on the course.
Expect a mix of bodyweight training, grip work, core stability, explosive power, and conditioning circuits—all programmed with ninja athletes in mind. Workouts are scalable, so beginners can build a solid foundation while experienced athletes push their limits.
This is where you build the engine behind your ninja skills.
🔹 All fitness levels welcome
🔹 Focused on strength, endurance, and injury prevention
🔹 Perfect complement to Ninja classes or OCR training
🔹 Semi-private setting for more coaching and attention
This day is marked as closed. Reopen the day to edit or restore sessions.
Skill Progression
Level up your ninja skills at your own pace! This session is designed for members to practice techniques, refine movements, and progress through our signature “Level-Up” program. Whether you’re perfecting a tricky obstacle or building strength and confidence, our safe and supervised open gym environment lets you challenge yourself, track your progress, and improve your ninja skills.
IMPORTANT: Please use participants name when booking
This day is marked as closed. Reopen the day to edit or restore sessions.
Introductory-level class designed for beginner ninjas.
This class focuses on developing coordination, balance, strength, and confidence through fun and safe obstacle challenges. Perfect for first-timers or younger athletes learning the basics of Ninja Warrior-style movement. Each week includes skill progressions and age-appropriate drills that promote focus and body control.
🔹 No experience needed
🔹 Capped at 8–10 students per instructor for safety and engagement
This day is marked as closed. Reopen the day to edit or restore sessions.
Progressive-level class for returning or older youth ninjas.
This class introduces more complex techniques, strength conditioning, and dynamic obstacles. Athletes build on foundational skills while working on grip strength, precision, and strategy. Suitable for students with prior ninja experience or athletic background in gymnastics, parkour, or climbing.
🔹 Coach approval or prior experience recommended
🔹 Focused on skill-building and competition prep
🔹 Capped at 10–12 students per instructor
This day is marked as closed. Reopen the day to edit or restore sessions.
Members Night: Pokémon Card Tournament & Trade Night
Get ready for a fun, relaxed night made just for our members! Join us for a Pokémon Card Trade Night, where collecting and community all come together.
Whether you’re a seasoned battler, a casual collector, or just getting into Pokémon cards, this event is all about having fun, meeting other members, and enjoying the hobby in a friendly environment.
Casual Pokémon card tournament (all skill levels welcome)
Open card trading throughout the event
Hang out with fellow members in a relaxed, family-friendly setting
No pressure—play, trade, learn, and enjoy
Members only event
Gold/Silver Members: Free
Non-Members: entry
Bring your deck, your binders, and your best trades. Whether you’re here to compete, trade, or just vibe with the community, Members Night is the perfect way to connect and unwind.
We can’t wait to see you there! 🥷🎴
This day is marked as closed. Reopen the day to edit or restore sessions.
Skill Progression
Level up your ninja skills at your own pace! This session is designed for members to practice techniques, refine movements, and progress through our signature “Level-Up” program. Whether you’re perfecting a tricky obstacle or building strength and confidence, our safe and supervised open gym environment lets you challenge yourself, track your progress, and improve your ninja skills.
IMPORTANT: Please use participants name when booking
This day is marked as closed. Reopen the day to edit or restore sessions.
Dial in your skills, test new obstacles, or just get in a great workout — this open gym is designed for ages who want to train at their own pace in a supportive ninja environment.
Details:
💥 Both Youth (6-15) and adults (16+)
✅ Access to all designated training zones
✅ Staff present for safety and supervision
⏱ 2-hour time limit
🎯 Ideal for independent training or skill progression
Note:
No formal coaching provided during Open Gym. Waiver required prior to participation
This day is marked as closed. Reopen the day to edit or restore sessions.
Put your skills to the test on a full-length ninja course designed for teens and adults. Adult Course Run Nights are structured but self-driven sessions focused on flowing through obstacles, building endurance, and preparing for competitions.
Details:
✅ Access to a designated adult-level ninja course
✅ Course resets and flow-focused training
✅ No formal coaching — self-paced runs encouraged
✅ Staff present for safety and course management
📍 Recommended for ages 16+
(Youth Level 5 are able to join at Coach's Discretion)
⏱ Duration: 3 hours of course runs and good vibes
Important:
Participants must have a signed waiver on file. This session is intended for experienced youth and adult athletes. No open gym during this time.
This day is marked as closed. Reopen the day to edit or restore sessions.