Jack-up platform comprising a mooring system and a method for mooring a floating vessel

A jack-up platform comprising a hull, a horizontal working deck and a number of vertical legs that connect to the working deck through jacking systems, each jacking system being configured to move a leg between a lower position, in which the leg takes support on an underwater bottom and the hull is jacked out of the water, and a higher position, in which the leg is free from the underwater bottom and the hull is floating on the water, wherein the jack-platform further comprises a mooring up system configured to moor a floating vessel at a mooring side of the jack-up platform, the mooring system configured to prevent the floating vessel from partly sliding under the jacked-up jack-up platform, hitting the legs of the jack-up platform and endangering the total stability of the jack-up platform, and comprising at least two elongated support means for supporting a hull part of the floating vessel, whereby the elongated support means are provided along a line at the mooring side of the hull of the jack-up platform, and guiding means connected to the hull of the jack-up platform at the mooring side, and configured to rigidly hold the elongated support means in a support position, in which the elongated support means is within reach of the hull part of the floating vessel to be supported when the hull is jacked out of the water and the jack-up platform rests on its legs.