Vessel with moving stern swim platform supporting steps sliding over fixed stern steps

A vessel or boat comprising a hull having

• a stern at which there is a stern swim platform having at least one moving part capable of moving along and close to a portion of the stern,
• said moving part being associated with actuators of one piece with the hull and capable of moving said moving part along the portion of the stern,
• said moving part being able to adopt at least one first working position in which it is out of the water on which the boat lies and a second working position in which said moving part is lowered with respect to the hull into the water,
• steps being provided at said stern capable of permitting passage from a deck of the hull to said stern swim platform,
• wherein at least some of said steps are of one piece with the moving part of the stern swim platform and move therewith over further fixed steps provided in said stern, said movement of the steps being performed in a guided way, the moving steps together with the fixed steps forming an elongatable swim ladder,
• said moving steps covering the fixed steps when the moving part of the swim platform is in the first working position,
• said moving steps freeing access to the fixed steps when said moving part of swim platform is in its second working position, the moving steps forming an extension of the fixed steps in this second position.