Contemplated herein is an adjustable positive restraint docking system, the system having a latching assembly, the latching assembly being configured to be affixed to a docking point on a dock so as to act as a mooring point for a watercraft to said docking point. The latching assembly can also include a latching head assembly, the latching head assembly wherein in the embodiments shown the latching head assembly can also be provided with a receiving channel having an open portion being configured to receive a secondary locking component provided about the watercraft. A linkage assembly can be provided which within or about the channel, which can selectively block or open the open portion of the receiving channel. In some embodiments, the linkage assembly can be configured to pass through a toggle point between an open state and a locked state.

A structure includes a bracket and a vertical member. The vertical member includes a vertical member top end and a vertical member bottom end. The vertical member is affixed to the bracket. The structure further includes at least one bumper. The at least one bumper is affixed to the vertical member bottom end via a bumper connecting structure. The structure further includes an arm member. The arm member includes an arm member first end and an arm member second end. The arm member second end is affixed to the vertical member top end. In another aspect, a structure includes a support, and affixed to the support, a bracket. The structure further includes, affixed to the support via a bumper connecting structure, at least one bumper. The structure further includes, affixed to the support, an arm member.

The adjustable dock handle is a device that is adapted to be attached to a top surface or a side surface of a dock, and which includes a handle that is used to help manipulate a boat during a docking process. The end user may easily reach the handle in order to pull the boat into position for mooring, and which will provide the support and stability needed to independently control the boat while docking.

An improved pole support base mounted to a dock has means to pivot a housing supporting an inserted flexible pole and means to lock the pivoted pole in a vertical position to clear the pole from interfering with a vessel leaving from or returning to the dock. The pivotable housing and pole are manually lowered down to a determined desired degree to position the flexible pole and a line or rope that passes around a pulley at the end of the pole and is attached to a boat cleat to prevent possible damage owing to the vessel contacting the dock.

Methods for the maintenance of a marine structure having a wind turbine and at least one essentially vertical shaft are described. The methods include the use of an auxiliary floating system having: at least one floating element that remains semisubmerged throughout the process of maintaining the marine structure; at least one coupling structure that connects the system to the floating structure; and contact elements and tightening elements, wherein the contact and tightening elements are secured to the coupling structure and are intended to solidly connect the system to the shaft. Advantageously, this solid connection allows operations for the maintenance of the marine structure to be carried out in a manner that is efficient and safe for maintenance workers and for the systems involved in the operations.

A retractable cantilevered watercraft whip mooring system has a retractable canopy which covers the watercraft while moored to a dock. The system includes a pair of whips secured to the dock by a pair of mounts. Each whip includes a tie-down line. Each whip includes a tie-down line. The retractable cantilevered watercraft whip mooring system protects the watercraft from rubbing or bumping against the dock. In addition, a retractable canopy slides over and is secured by the pair of whips. The retractable canopy includes a support baten. The watercraft is secured by the retractable cantilevered watercraft whip mooring system to protect the watercraft from rubbing or bumping against the dock. The canopy slides over the pair of whips. The canopy is securable relative to an exterior side of the watercraft, enabling the watercraft to be protected during severe weather conditions while the watercraft is attached to the dock.

A retractable cantilevered watercraft whip mooring system has a retractable canopy which covers the watercraft while moored to a dock. The system includes a pair of whips secured to the dock by a pair of mounts. Each whip includes a tie-down line. Each whip includes a tie-down line. The retractable cantilevered watercraft whip mooring system protects the watercraft from rubbing or bumping against the dock. In addition, a retractable canopy slides over and is secured by the pair of whips. The retractable canopy includes a support baten. The watercraft is secured by the retractable cantilevered watercraft whip mooring system to protect the watercraft from rubbing or bumping against the dock. The canopy slides over the pair of whips. The canopy is securable relative to an exterior side of the watercraft, enabling the watercraft to be protected during severe weather conditions while the watercraft is attached to the dock.

In summary, described herein is a mooring device for mooring a first structure to a second structure, the device comprising: an engagement member for releasably engaging the first structure; a dampener having a first portion movably connected to a second portion, the first portion being connected to the engagement member and the second portion being connected to the second structure, wherein the dampener is configured to damp load transfer between the first and second portions of the dampener and thereby damp relative motion between the first and second structures.

The invention relates to a device for transferring personnel, equipment and/or structural elements from a surface vessel to an offshore structure, such as a wind turbine, or to another vessel comprising a foundation mounted or to be mounted on a surface vessel, an arm pivotally connected to the foundation and at least one gripper connected to the free end of the arm for coupling the arm to an offshore structure. A second arm is pivotally connected to the first arm.

An off-shore wind turbine system is assembled using a platform or jack-up vessel, and a first base anchored to the seafloor at a blade assembly off-shore location. A buoyant tower is attached to the first base. A crane provided on the platform or jack-up vessel is used to lift blades and blades, which are then coupled to a turbine held in a nacelle provided at the top of the buoyant tower. The buoyant tower, the nacelle, and the blades are detached from the first base. The buoyant tower, the nacelle, and the blades are towed to a wind farm and connected to a second base provided in the wind farm. The buoyant tower, the nacelle, and the blades are further stabilized using mooring lines spanning between the buoyant towers and other bases provided in the wind farm. The first base and/or the second base include anti-rotation features.