this is on popular demand - we did this last year
Basically you step into a huge, transparent 5-6 diameters plastic ball which is zipped and then you roll on the water surface. This Ball is tied to a rope so you cannot go very far - so not to worry.Â Check out the video clips on google search.
Another one is a hollow pipe, open from both sides - 3-4 people can be in it at a time. then you... [read more]