Water Parks

LETRA Water Slide

Name: LETRA Water Slide
Address: 7463 Deer Creek Canyon Rd, Fort Sill, OK 73503, Fort Sill, OK, US
Telephone: (580) 442-5854
Rating: 4.3

★★★★☆ 4.3 (22 reviews)

📍 7463 Deer Creek Canyon Rd, Fort Sill, OK 73503

📞 (580) 442-5854

🌐 sill.armymwr.com/programs/letra

Visit Website 📍 Get Directions

🕐 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

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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.