A floating platform has a floating member. The floating member is attached to another object, which may be fixed to the earth or it may be a floating object such as a floating dock or a vessel. At least two guide posts each have a horizontal blade extending from them. Each blade slidably engages a bracket that is mounted to the object, with the slidable blade permitting horizontal adjustment of the distance of the floating member from the object. The floating member has at least two horizontal receptacles extending through the floating member. Guide posts slidably engage the receptacles, permitting the floating member to move vertically relative to the guide posts, which fix the floating member's horizontal position relative to the object.