Please Note: Copyright for this report is held by the author. It is reproduced here with the permission of the author. Any disclosure, copying, distribution or other action taken in reliance of the information contained in this report is strictly prohibited. Any views expressed by the author are not necessarily those of the company. AP Diving is the trading name for Ambient Pressure Diving Ltd, registered in England under Company Registration Number 4118978, and the Registered Office is Unit 2C, Water-Ma-Trout Industrial Estate, Helston, Cornwall TR13 0LW.