





Water Parks
LETRA Water Slide
📍 7463 Deer Creek Canyon Rd, Fort Sill, OK 73503🌐 sill.armymwr.com/programs/letra
🕐 Hours
| Monday | Closed |
|---|---|
| Tuesday | Closed |
| Wednesday | 11 AM–7 PM |
| Thursday | 11 AM–7 PM |
| Friday | 11 AM–7 PM |
| Saturday | 11 AM–7 PM |
| Sunday | 11 AM–7 PM |
Quick Facts
- Location
- Lake Elmer Thomas (360-acre no-wake lake)
- Water Activities
- Double flume waterslide, lifeguarded beach, paddle boats, kayaks, paddleboards, canoes
- Season
- Memorial Day to Labor Day (water activities); year-round camping
- Cabin Rentals
- $90-$110/night year-round
💡 Did You Know?
- LETRA Water Slide offers free access to water slides during summer season (Memorial Day to Labor Day), with only a double flume waterslide but no wait lines despite the free admission
- The facility operates year-round for camping and activities despite water activities being seasonal, with lodge rentals accommodating up to 77 people for $150/day
- LETRA requires background checks and photo identification at the visitor center, creating a security-conscious environment unusual for recreational water parks and noted as 'very invasive, not for tourists' by visitors
💬 What Visitors Say
- The water slides are free to ride with no long lines, making them an excellent value. Visit during weekdays (Wed-Sat office hours 10am-4pm) when crowds are typically lighter to maximize your slide time.
- Plan to arrive during office hours (Wed-Sat 10am-4pm) if you need to rent equipment like kayaks or paddleboards. This is when Sportsman Services is available and can assist you.
- Be aware that this is a military recreation area at Fort Sill—you'll need a background check, photo ID, and visitor pass at the visitor center. This is not a typical tourist water park, so plan extra time for the entry process.
- Bathrooms are basic (as expected for a lake facility), so set realistic expectations. The tradeoff is affordable access to water activities and a relaxed, uncrowded environment ideal for camping trips.
- Combine your visit with mini-golf ($5/person, free for under 6) or special events like kayak lessons and paddleboard tours scheduled throughout May and June for added entertainment value beyond the slides.
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