We took our 11yo son on the tour. There were no problems. I think making sure that the harness fits etc would be the main concern. I think one issue was that if a person is too light, then there might not be enough momentum on some of the lines to coast all the way to the platform (the lines sag, so especially for the longer lines it's uphill at the very end), and the person may have to pull themselves hand-over-hand on the cable to make it to the platform for the final few feet; the guide will also go out and help the guest. This didn't happen with our son, but with my wife....
You have to be 10 or older
No age limit, just a weight limit.
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