Seasonal Information & Documents

Mermaid Day at Big Rivers September 8th, 2025 Dive into a magical experience during Mermaid Day at Big Rivers Waterpark! On September 8th, guests can meet and take pictures with real mermaids,  a perfect photo op and unforgettable memory for all ages. Mermaids will be making appearances and taking photos […]

Buddy Day July 10th, 2025 Cool off this summer with your best buddy at Big Rivers Waterpark! On July 10th, all 2025 Season Passholders can bring one guest for free to enjoy a full day of fun in the sun. It's the perfect mid-summer adventure! Your admission includes access to […]

Splash & Dash Race Saturday, September 20th, 2025 Proceeds benefit the TANGO2 Research Foundation Lace up and dash for a cause at Big Rivers! Whether you're running, walking, cheering, or supporting, this event is a fun and meaningful way to get involved. 5K Dash - $30 early bird ($60 regular) […]