The first time I did this was several years ago, probably in 2007 in Bukit Merah Laketown Resort, Perak but I had no picture taken then.
What I have is this one taken in 2014 in Tambun with my colleague. It was a total scream fest as we spiraled and splashed down the slide. I didn't sit properly, so my butt touched the ground. The next morning I woke up with a sore butt.