We went to an indoor rock climbing centre today. The kids had a great time, although it did wear them out very quickly. Emma only lasted about 1/2 an hour before her fingers became too sore to go on. Alex went hard for an hour and had worked up a sweat by the time he was ready to stop. It was a great way to spend some time together. Would love to try it myself some time, the only problem is that you need to have someone else there to hold the rope. Not sure that I trust enough people in my life to hold my rope. Too many people I like to spend time with have way too wicked a sense of humour to be trusted.