The Electric Waterslide Acid Test.
The Bad 1 Water Park in Bremerhaven, Germany, is the home to the most far-out, psychedelic waterslide this side of the 5th dimension, The Black Hole. The ride starts completely dark, but soon you are surrounded in rings and streaks of flashing, colored LED lights.
The Black Hole will make you feel like you're zooming through space at warp speed or cruising though the ending sequence of 2001: A Space Odyssey or you're taking a cab home drunk through the Queens Midtown Tunnel.
If LSD Flashbacks: The Ride is not scary enough for you, check out this new fad in water slide design: the trap door. Man, some lucky teenager gets to play waterpark Mister Burns all summer. What a great gig!