My friend drives Green Sands Shuttle and asked me if I could attempt an uw search on behalf of the deceased friends who were understandably worried. They rented dive gear after a day and a half of searching was unsuccessful but no way were they going to be able to dive that day. Friend drove me into Green Sand early am. Conditions were approaching my comfort limit. Doubt I would have been successful without the DPV and having my SMB and finger spool made it fast and safe for the search and rescue dive team to retrieve him.