Special Events

Tot Time Exploration

Parents, this is an exclusive opportunity to swim with your child without the big kids around. Bring your little ones and enjoy some quiet time! You’ll have access to the shallow pool, which includes 2 tunnel slides and a boat slide, play Young Child Enjoying Tot Time1.jpgfeatures and floatables. Even better - when Rock River Rapids opens to the public, you may stay and swim!

This activity is restricted to children 5 years old and younger, and they must be accompanied by a patron 16 years or older at all times. Ratio is 2 children per adult and regular admission is required. Not valid with any other coupons.  Tot Time begins at 11:00 am and runs until 12:15 pm. TOT Time participants MUST exit the park at 12:15 pm. Tot time takes place on Saturdays only during the summer season. Admission is $5 per person. Children 2 and under swim free.   

Join us virtually on August 1 and 8  at 10 am for a mermaid tale story prior to coming to Tot Time to make mermaid memories of your own.  Thank you to the Derby Public Library for presenting our stories and providing a great start to the day!

World's Largest Swim Lesson

Be a part of history! Bring your entire family, friends and neighbors to brush up on your swimming skills while attempting to set a world record and build awareness about the importance of teaching kids to swim.  Join Rock River Rapid's staff in making 2021 the year we reach 300 people with the vital message that SWIMMING LESSONS SAVE LIVES!  Registration begins at 9:30am the day of the event with lessons beginning at 10am.

DateTime Fee
June 1710:00am (registration begins at 9:30am)FREE

Rock River Rapids Cardboard Regatta

Join us for our first ever Cardboard Boat Regatta!  The regatta challenges the Derby community to design, build and navigate boats made entirely from corrugated cardboard and duct tape.  The regatta is open to participation for teams of up to 4 people of all ages.  We're excited to see your boats!  Racers are welcome to stay once the event ends.  Learn more information about construction, rules and awards.

July 81:00pm-3:00pm$5 (plus daily park admission or season pass)

Party at the Rock

We'll have a live band, food trucks, BBQ yard games, graffiti wall, hula dance lessons and much more in addition to all the water fun Rock River Rapids has to offer.  No refunds due to inclement weather after the event has started, however, if we cancel prior to our 7:30pm scheduled event, July will be our make-up date.

July 227:30pm-10:30pm$5

Mermaid Tales

Wear your best mermaid or merman suits and join us for Mermaid Tales story time at 11:00am at Rock River Rapids!  Our friends from the Derby Public Library will provide our tales for free in the pavilion just outside of the waterpark and then join us for tot time at 11:30am.  RRR Season passes or $5 admission fee apply for tot time which is from 11:30am – 12:15pm.

July 3111:00amFREE
August 711:00amFREE


Back to School Splash 6th-8th Grades

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.

August 137:00pm-9:00pm$5 + student ID

Summer Swim Meets

Rock River Rapids is pleased to host summer swim meets for the Wichita Aqua Shocks and the Derby Dolphins. During their meets the lap pool will be closed; however the rest of the park is filled with adventure waiting for you. 

Please note the diving boards, drop slides, climbing walls, floatables, and basketball goals will not be available for use.

The lap pool will be closed from 5-7pm on July 7, July 14, July 21, and July 28 due to swim meets.