As a reminder that diving can be dangerous if safety protocols are not followed. This diver was solo diving & I will strongly defend my self ,in saying that solo diving is not a taboo. Ref PADI self reliant diver specialty course & that I have done my self many solo dives. Solo diving is like cave or wreck diving, the risks are obviously far higher and training for such dives are vital. This is why I strongly recommend to be at least a Padi Rescue Diver & stand by this statement.