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Rock River Rapids water park in Derby, Kansas, is having some end-of-summer fun deals and activities. Have you ever been to this water park? If not, it’s worth the drive. Check out these deals below.
Please read our article about Rock River Rapids to learn more about this water park in Derby, how to get free admission, and more.
Pro Tip: You can visit the waterpark for just $5 after 5 pm for the rest of the Summer!

End of Summer Deals at Rock River Rapids:
Starting July 7th, you can get 50% off your Rock River Rapids season pass!
July 17: Military Appreciation Day
- They are partnering with McConnell AFB for a free swim day for Military personnel and their immediate family. Must show current military ID for free admission. Hosted by McConnell AFB.
August 15: Back to School Splash for USD 260, 7 to 9 p.m.
- Join your middle school friends for a night of music and fun in the water. Wear your swimsuit to the bash. Please remember the USD 260 rules apply and will be enforced. Volunteer chaperones are always welcome and needed.
- 6th-8th graders | Student ID required | $5/person
- Join your friends for a night of music and fun in the water.
August 16: Pooch Pool Party, 11 am – 1 pm
- $5/dog
- Rock River Rapids is ending the season with a doggie splash! Water chemistry will be adjusted for our different breed of swimmers. Those 16 years and older will be allowed in the water up to their thighs, but no children are allowed in the water. No aggressive dogs or females in heat will be allowed to ensure the safety of everyone attending. Watch for our contests and be ready for some four-legged fun.
Visit Rock River Rapids on Derby’s website.
Rock River Rapids last day for general admission for the 2024 season is August 13 (besides their special events)