2024 Water Follies Apollo Columbia Cup
& STCU Over-the-River Air Show

Mark your calendars for July 26 – 28, 2024!


Days to Go!

STCU is our 2024 Official Over-the-River Air Show Sponsor!

The 2024 Apollo Columbia Cup will mark the 59th time Unlimited Hydroplanes have raced on the Columbia River.


The Tri-City Water Follies is delighted to announce that the Apollo Columbia Cup and STCU Over-the-River Air Show will welcome the 2.5 Litre Stock hydroplanes ("S" class) to its lineup of exciting boat racing on the Columbia River on July 26 – 28, 2024.

And Fun!


A variety of sponsorship packages are available to choose from each offering various promotional and hospitality opportunities for businesses while at the same time providing support to the Tri-City Water Follies.

3 Things to Know about the Apollo Columbia Cup

The Air Show and Apollo Columbia Cup are approaching with a roar! Join us as the shores and waters around the Columbia River fill up with fans.

The hydro races have been thrilling fans for many decades but may be new to you. What makes them unique, and why are so many people flooding to the shores of Columbia to see them race?

Here are three things to know about hydroplane racing:

1.Β The hydros are essentially boats that fly. The design is such that very little of the hull (bottom) touches the water, and the boat mostly races on an air cushion.

2.2.5 Litre Stock hydroplanes (“S” class) race to 100-plus mph, using 145 horsepower marine-based 2000 and 2300 Ford engines.

3.Β The engines have evolved over the years but mostly come from the aviation industry. For the first few decades after World War II, they used WWII-era internal-combustion airplane engines, typically Rolls-Royce.