A water coaster is a water slie that mimics a roller coaster by providing not only descents, but ascents as well. This is done with high-speed conveyor belts or water jets. Manufacturers of water coasters include NBGS International, whose Master Blasters use water jets; and ProSlide, whose ProSlide Rockets use conveyor belts, or, more recently, linear induction motors to move riders uphill. The longest water coaster in the United States is the Black Anaconda at Noah's Ark Waterpark, which is 0.25 miles long. While largest indoor one belongs to Chula Vista Resort in Wisconsin Dells.