A marine vessel is for operating in a body of water. The marine vessel has a hull having a deck and a sidewall extending vertically upwardly relative to the deck, wherein together the sidewall and deck define an interior of the marine vessel. A dive door is pivotable about a vertical pivot axis into and between an open position opening a doorway through which a swimmer can exit the interior of the marine vessel and a closed position closing the doorway. A storage pocket is formed in an inside surface of the dive door facing the interior of the marine vessel. A retaining mechanism facilitates storage in and removal of a ladder from the storage pocket, the ladder being for enabling a swimmer to climb into or out of the body of water via the doorway when the dive door is in the open position.

A marine vessel is for operating in a body of water. The marine vessel has a hull having a deck and a sidewall extending vertically upwardly relative to the deck, wherein together the sidewall and deck define an interior of the marine vessel. A dive door is pivotable about a vertical pivot axis into and between an open position opening a doorway through which a swimmer can exit the interior of the marine vessel and a closed position closing the doorway. A storage pocket is formed in an inside surface of the dive door facing the interior of the marine vessel. A retaining mechanism facilitates storage in and removal of a ladder from the storage pocket, the ladder being for enabling a swimmer to climb into or out of the body of water via the doorway when the dive door is in the open position.