Desmond Hughes and Khun Oranit Sawanakunanon have co-written an article published in Window on Phuket magazine and online at: http://www.windowonphuket.com/useful-info/244/dangerous-activities/ in which they describe common activities that visitors to Thailand and Phuket engage in and the relevant laws which apply to such activities.
These matters relate to insurance; safety; legal claims for injuries and compensation; and the obligations of operators of equipment relating to such activities.