Atlantis Water Park is located in Clarksville, Indiana, just minutes from exciting downtown Louisville. With entertaining attractions, it is a SPLASH for all ages. Atlantis brings cool and refreshing water fun to the Southern Indiana and Louisville area communities. it's a real SPLASH! Features Tsunami Sea, a large exhilarating wave pool; Mount Olympus, a 43' towering maze of water slides; and King Neptune's Cove, a perfectly sized water space for the smaller water tikes.