If you are searching for things to do on a rainy day, then Tenpin Rotovegas has to be on the list. Ten pin bowling is heaps of fun and suitable for anyone 3 years and older (complete with light weight balls and ramps to make it easier).
Time wise you are looking at 10 mins per game, per person. The scoring is totally automated, so no cheating necessary – you can’t argue with the computer printout. Everything you need can be hired at the store although you may want to bring your own socks.