If it is too thick, which can happen at warmer temperatures, it can create suction that makes it harder to slide over the water layer.

ECONOMIST: Skiing: Not waxing lyrical | The

Unfortunately, if your kids are only looking for the next rollercoaster thrill, the Dream's Aquaduck, a 765-foot clear water slide that cantilevers 12 feet out over the ocean, will not match up.

BBC: Keeping Disney magic afloat