NEW YEARS DEALS. TEXT US AT (253)929-8375 TO GET YOUR SPECIAL DEAL

SUMNER NINJA LLC
  • Home
  • YOUTH PROGRAM
  • ADULT PROGRAM
  • BIRTHDAY PARTIES
  • TEAM
  • SUMMER CAMP
  • OPEN GYM
  • SESSION DATES/CLOSURES
  • WAIVER
  • SQUARE ONE CLASS
  • COMPETITIONS
  • SKILLS WE TEACH
  • Thank you
  • More
    • Home
    • YOUTH PROGRAM
    • ADULT PROGRAM
    • BIRTHDAY PARTIES
    • TEAM
    • SUMMER CAMP
    • OPEN GYM
    • SESSION DATES/CLOSURES
    • WAIVER
    • SQUARE ONE CLASS
    • COMPETITIONS
    • SKILLS WE TEACH
    • Thank you
SUMNER NINJA LLC
  • Home
  • YOUTH PROGRAM
  • ADULT PROGRAM
  • BIRTHDAY PARTIES
  • TEAM
  • SUMMER CAMP
  • OPEN GYM
  • SESSION DATES/CLOSURES
  • WAIVER
  • SQUARE ONE CLASS
  • COMPETITIONS
  • SKILLS WE TEACH
  • Thank you

Sumner Ninja - Premier Ninja Gym in Auburn

Indoor gym with climbing walls and padded mats for training.

Youth classes

Birthday parties

Youth classes

Learn more
Indoor obstacle course with padded floors and climbing equipment.

Adult classes

Birthday parties

Youth classes

Learn more
Indoor gym with obstacle course and climbing wall setup.

Birthday parties

Birthday parties

Learn more
Child climbing a rope in an indoor gym with an adult supervising.

youth & adult open gym

sign up for a trial class today by filling out the form below

Learn more
Kids celebrating on a podium with medals in an indoor gym.

COMPETITIONS

sign up for a trial class today by filling out the form below

sign up for a trial class today by filling out the form below

Learn more
Kids celebrating on a podium with medals in an indoor gym.

sign up for a trial class today by filling out the form below

sign up for a trial class today by filling out the form below

sign up for a trial class today by filling out the form below


Contact Us

email or text to sign up for a trial class

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SUMNER NINJA LCC

CALL OR TEXT ANYTIME AT (253)929-8375


CHECK US OUT

Indoor gym with obstacle course and climbing wall setup.
Indoor obstacle course with padded floors and climbing equipment.
Indoor climbing wall with colorful grips and training equipment.
Various colorful gym handles and grips hanging from hooks.
Indoor climbing wall with colorful holds and wooden grips.
Various colorful gym training tools hanging on hooks.
Indoor climbing wall with colorful holds and Mario-themed stickers.
Indoor gym with workout equipment and picnic tables beside a white wall.
Reception area with chairs, fridge, desk, and office supplies.

ABOUT US

Our Mission

Our Facilities

Our Facilities

At SUMNER NINJA LCC, our mission is to provide a safe and welcoming space for members of our community to engage in physical activity and socialize with others. As a premier american ninja gym in the PNW, we strive to offer a variety of programs and services that promote health and wellness. Whether you're looking for a local ninja gym in Auburn or exploring the best gyms in the PNW, we are dedicated to helping everyone achieve their fitness goals.

Our Facilities

Our Facilities

Our Facilities

Sumner Ninja is one of the few ninja gyms in Washington, offering a premier training facility for aspiring warriors. We specialize in American Ninja Warrior training, making us a top choice for anyone searching for an American ninja gym in Seattle. Our passion also extends to Spartan training and gymnastics, ensuring we cater to the entire family with classes available for both youth and adults. Whether you're looking for a ninja gym to enhance your skills or simply want to have fun, we've got you covered.

what to expect

Our Facilities

what to expect

At our Auburn ninja gym, we change obstacles weekly to ensure a unique experience every time you join us. While we offer a variety of challenges at our American ninja gym, there are a few obstacles that will always be available, including the salmon ladder, warped walls, devil steps, ring toss, rope climb, and peg boards. Come and experience the excitement at one of the best ninja gyms in the Northwest!


Contact Us

Drop us a line!

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Better yet, see us in person!

At our Seattle ninja gym, we truly value our customers, so feel free to visit the American Ninja Gym Seattle during normal business hours. We look forward to seeing you at one of the best ninja gyms in Seattle!

SUMNER NINJA LCC

201 Clay St NW Suite A-5, Auburn, Washington 98001, United States

(253)929-8375 CALL OR TEXT

Hours

Mon

03:00 pm – 08:00 pm

Tue

12:00 pm – 08:00 pm

Wed

03:00 pm – 08:00 pm

Thu

03:00 pm – 08:00 pm

Fri

04:00 pm – 08:00 pm

Sat

09:00 am – 01:00 pm

Sun

Closed

SUMNER NINJA LLC

201 Clay Street Northwest, Auburn, Washington 98001, United States

(253)929-8375 CALL OR TEXT

Copyright © 2025 SUMNER NINJA LLC - All Rights Reserved.

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BEGINNER COMPETION


MARCH 7TH WE WILL BE HOSTING A COMPETION. OPEN TO ANYONE WHO IS INTERESTED IN COMPETING OR COURIOUS ABOUT HOW THEY WORK. 

EMAIL FOR MORE INFORMATION