What is the minimum allowable depth for diving under a ship at low tide?

Diving under a ship at low tide requires careful consideration of safety measures and potential hazards. The minimum allowable depth suggested is 6 feet because this depth generally provides enough clearance under the hull of most vessels, thereby reducing the risk of collisions with the ship's keel or other submerged structures.

In addition to ensuring sufficient space for safety, maintaining a minimum depth of 6 feet helps divers avoid potential entrapments or injuries from jagged edges or debris that may be present near the bottom in proximity to a ship's hull. This depth guideline is also aligned with standard diving safety practices, which prioritize maintaining safe distances from underwater obstructions and ensuring divers have enough room to maneuver without risk of injury.

Choosing a depth below this threshold can lead to unsafe conditions for divers, but going deeper than 6 feet is permissible if conditions allow, giving divers a greater margin for safety. Thus, the choice of 6 feet as the minimum depth is based on balancing the need for safety while undertaking such diving activities.