Fort Mackenzie
Prepare for fun in our interactive multi-level water fort treehouse complete with a giant tipping bucket.
IndoorModerate Thrill
Great Wolf Lodge Grand Mound Indoor Water Park
Make a splash with your pack
Water Park Access
Included With Every Stay
With a 56,000-square-foot indoor water park always kept at a perfect 84 degrees, your pack can enjoy a world of adventure in Grand Mound, between Portland and Seattle, WA whether you’re staying overnight or visiting for the day.
Water Park Hours
Indoor—
Splash & Play
All Water Park Attractions
River Canyon Run
Twist and dip over this raft water slide's gentle curves and bends designed for the whole pack to enjoy.
IndoorHigh ThrillMin height: 42"Max weight: 250 lbs
Alberta Falls
Descend four stories on this exhilarating tandem tube ride to give your pack four times the fun.
IndoorModerate ThrillMin height: 42"Max weight: 250 lbs
Big Foot Pass
Balance your way across the floating lily pads, hanging on to the ropes above, and try not to fall in.
IndoorMild ThrillMax weight: 400 lbs
Slap Tail Pond
Catch a wave and play in the swells. Our wave pool can be enjoyed by guests of all ages.
IndoorMild Thrill
Whooping Hollow
Enjoy this play pool filled with smaller waterslides for the littler members of your pack.
IndoorMild ThrillMax height: 52"
Totem Towers
Slide down the best way to escape the top of Fort Mackenzie!
IndoorModerate ThrillMin height: 42"Max weight: 300 lbs
Cub Paw Pool
Splash and play with the little ones in your pack in this kiddie swimming pool filled with fun activities.
IndoorMild ThrillMax height: 54"
Howlin' Tornado
Take the plunge through six stories of swishing, swirling, splashing fun on our signature water slide designed for the adventure-seekers in your pack!
IndoorHigh ThrillMin height: 48"Max weight: 700 lbs
Great Wolf Lodge Grand Mound Map
Explore the Lodge
Check out the map of our lodge in Grand Mound, WA and discover all the attractions, dining, and adventure waiting for your pack.
View Lodge MapWater Park Tips & More
Make the most of your visit
- Bring comfortable swimwear and water shoes for little ones
- Use sunscreen during warm-weather months
- Arrive early in the day for shorter lines on popular attractions
- Download our mobile app for food ordering, daily schedules, and more
- Lockers are available to store your belongings
How To Visit
Choose Your Adventure
Frequently Asked Questions
View all FAQsYou can access the water park any time after opening on your arrival day and until closing time on your departure day.
You can enjoy our entire indoor water park at Great Wolf Lodge in Centralia with a Day Pass. Please see our Day Pass Page for pricing on both Half Day and Full Day Passes. Passes are free for children ages 2 and under.
Along with your suite, a stay at Great Wolf Lodge Grand Mound includes unlimited access to our 84-degree indoor water park, from open to close, filled with waterslides, pools, and more. Guests are also invited to enjoy free daily events and activities, including our nightly family dance party, arts and crafts, and story time. Our Adventure Park is also filled with adventurous attractions and a 24-hour arcade, available at an additional cost. Multiple dining options are available on-site for your convenience. Parking is not included in the room rate.
Coast Guard approved life jackets are available on a first come, first serve basis. We strongly recommend that children under 48 inches and weak or non-swimmers wear a life jacket. Please note that inflatable toys are not allowed in the water park.
Towels are provided for your family in the water park as well as bathing towels in your suite. You may wish to bring a beach towel or cover up as we ask that the towels stay in the water park area. Towels in the water park are included but are subject to a fee if not returned.
We do have a locker room with small lockers available for your use. The lockers are rented on a daily basis for a nominal fee. Larger items, such as luggage, will need to be kept in your room or vehicle.