 Find out how you can get more for your money at Bank Midwest. Member FDIC. Now you can camp and play at South Dakota's largest water park, Wild Water West. Flamingo Falls Campground is open right next door. So when you've had all the unlimited water park fun you can handle, just walk over to your tent or RV site, relax and repeat. Catch the wave pool, the water slides, the lazy river and the swim up bar with friends and family and camp next door at Flamingo Falls Campground.