A system for attaching accessories to a boat that is moveable between a first, stored configuration and a second, expanded configuration. The system includes a boat, a first leg frame member, a second leg frame member, an attachment device, a first support member, and a second support member. The first leg frame member has a proximal first end attached to the boat such that a portion of the first leg frame member is pivotable relative to the boat. The second leg frame member has a proximal second end attached to the boat such that a portion of the second leg frame member is pivotable relative to the boat. The attachment device is mounted to the first leg frame member and the second leg frame member. The first support member is attached to the first leg frame member and the second support member is attached to the second leg frame member.

Disclosed is a variable beam vessel. The vessel comprises a main hull having a longitudinal axis, a float and a float connection assembly comprising a main support member and actuation system. The main support member is connected to the float and main hull. The actuation system moves the float substantially perpendicularly to the longitudinal axis between an in-use configuration in which the main support member is connected to the main hull and maintains the float a first distance from the main hull, and a stowed configuration in which the main support member maintains the float a second distance from the main hull, the second distance being less than the first distance. The actuation system maintains a common orientation of the float in both the in-use configuration and stowed configuration.

Provided is a floating-type on-water support apparatus comprising: a ball in which a guide groove is formed along a circumferential surface thereof; a floating unit including a floating part which floats on water and supports the ball so that the ball is rotatable; and a support rod of which one end is exposed above the water so that a structure is installable thereon and the other end is heavier than the one end so that the support rod stands vertically and which passes through the circumferential surface and is coupled to the ball, wherein the floating unit further includes a restriction protrusion fitted into the guide groove to restrict the ball from being rotated about an axis of the support rod.

A floating-building including a buoyant-base configured to afloat on a surface of a water-body, an anchoring mechanism configured to anchor the buoyant-base to a bottom of the water-body, a plurality of supporting-components mounted on the buoyant-base, and a plurality of supported-elements. The plurality of supported-elements are movably arranged on the plurality of supporting-components.

The present invention is directed to an apparatus that allows a boat to be anchored, maneuvered, docking, and stabilized. The invention has a member that can rotate about a first axis from a stowed position to an anchored position. Or the member may be placed downwardly in the ground floor of the body of water, for maneuvering the vessel and to move the vessel in a desired direction. The hull of the vessel may have a channel for the rotation or movement of the member within the channel.

Provided is a floating-type on-water support apparatus comprising: a ball in which a guide groove is formed along a circumferential surface thereof; a floating unit including a floating part which floats on water and supports the ball so that the ball is rotatable; and a support rod of which one end is exposed above the water so that a structure is installable thereon and the other end is heavier than the one end so that the support rod stands vertically and which passes through the circumferential surface and is coupled to the ball, wherein the floating unit further includes a restriction protrusion fitted into the guide groove to restrict the ball from being rotated about an axis of the support rod.

An anchoring system for a vessel comprising an anchoring rod, a first support member coupled to a vessel and selectively couplable to the anchoring rod, and a second support member coupled to the vessel and in a spaced relation to the first support member. The second support member retaining the anchoring rod in a slideable engagement and defining a rotation path of the anchoring rod.