This reminds me of the old Waipahu Sky Slide days.
When I was driving, I saw this slide and I had to get a pic of it. 
This is the biggest slide I have ever seen in japan before.
Think it was 100 feet in lenght. Maybe more.
Bet the kids back home would have some fun on this...haha!
Anyone can slide on water, time to slide on land....heeeee!