Not all people like to come out of water just over side of boat after swimming. Some are too old or young for this also. So the ladder is a must, but how to build or attach one to small boat is puzzle. I built small ladder to be attached at rear u-bolt of the boat. Dimensions are based on storage option. Ladder is made from 50x50x5 mm aluminium profile. Four bolts are M10x20, and two are M10x20 with Flat Socket Head. For avoiding the ladder dive under boat, it is supported by on one inch diameter high pressure hydraulic hose piece. There is used 6x30 mm Clevis Pin for fixing ladder at u-bolt.