A system and method for deterring theft of a marine vehicles is provided. The system is designed to collect barometric pressure data and analyze it to determine whether there has been a sudden change in elevation that may be indicative of a theft. The system is also designed to collect environmental data pertaining to a marine vehicle's normal environment and compare it to a normal environmental state of the marine vehicle in order to detect changes that may be indicative of a theft. Additionally, the system is designed to monitor equipment of the marine vehicle and alert a user if the equipment has been moved in a way that may be indicative of a theft. When the system determines an event has occurred that may be indicative of a theft, the system may alert the user by triggering an alarm via a computer readable signal.

A central floating device with a plurality of peripheral connection points and tethers. The tethers may be retractable, and are of sufficient length to allow the users some amount of spacing distance from each other. Each individual user thus maintains a separation from each other so as not to interfere with each other in the pool, lake, or body of water while remaining tethered together. The floating device may further include cup-holders, lights, storage compartments, and an anchor.

A central floating device with a plurality of peripheral connection points and tethers. The tethers may be retractable, and are of sufficient length to allow the users some amount of spacing distance from each other. Each individual user thus maintains a separation from each other so as not to interfere with each other in the pool, lake, or body of water while remaining tethered together. The floating device may further include cup-holders, lights, storage compartments, and an anchor.

A towing anchor capable of extending wing plate and an installation method therefor are provided. The towing anchor includes a main anchor plate and two wing plates which can slide outwards relative to the main anchor plate and will not be detached from the main anchor plate. The main anchor plate is anchored with a mooring steel cable connected to a towing vessel. The main anchor plate is further provided with a limit cable-receiving groove, in which first, second and third fixed pulleys are respectively provided correspondingly to each of the two wing plates. One end of a tensioning steel cable is fixed to an inner edge of the wing plate, and the other end of the tensioning steel cable sequentially surrounds the third, second, and first fixed pulleys and then passes through an opening formed at middle position of the groove to be connected to the towing vessel.

A system for cleaning rivers and waterways in general includes one or more floating modules, each having a floating body and a rotating body provided with projecting elements configured to be positioned on the water surface, so that, when the rotating body rotates due to the thrusting action of the water current, the projecting elements move floating debris in a direction determined by its rotation direction towards an accumulation or recovery area.

A system for cleaning rivers and waterways in general includes one or more floating modules, each having a floating body and a rotating body provided with projecting elements configured to be positioned on the water surface, so that, when the rotating body rotates due to the thrusting action of the water current, the projecting elements move floating debris in a direction determined by its rotation direction towards an accumulation or recovery area.

A variable weight boat anchor having an added weight storage capacity for submerged unloading of added weight is presented. Remote signal from a boat triggers the release of added matter in the anchor for a lighter pulling.

A variable weight boat anchor having an added weight storage capacity for submerged unloading of added weight is presented. Remote signal from a boat triggers the release of added matter in the anchor for a lighter pulling.

The present disclosure includes recreational watercraft including a drop down boarding point. One example includes a hull, an open platform passenger deck, and a plurality of sides, continuous from the hull. The watercraft includes a panel drop down boarding point, hingedly attached horizontally to the hull, for ingress and egress of persons to the watercraft. The panel drop down boarding point includes a first surface interior to the watercraft when the panel drop down boarding point is closed, a second surface, opposite to the first surface and exterior to the watercraft when the panel drop down boarding point is closed, and an aperture formed between the first surface and the second surface and having an opening in an end surface of the panel drop down boarding point. The aperture is sized and shaped to house a retractable ladder and for the ladder to extend out through the opening.

A restraining device, such as a bolt, pin, or latch, removably secures a connector sleeve to a U-bolt, such as a tow-rope-eyelet on the bow of a boat hull. The connector sleeve is machined with an internal cavity having surfaces and dimension that correspond to outer surfaces of the U-bolt. The sleeve contains holes through which the restraining device passes after the sleeve has been slid over the U-bolt such that the restraining device, while installed, prevents the sleeve from sliding back off of the U-bolt. The sleeve also includes accessory mount holes to receive restraining devices that attach an accessory, such as a ladder, to the sleeve and thus to the boat via the sleeve that has been secured thereto. The sleeve may provide for set screws to snug the sleeve to the U-bolt if clearance exists between surfaces of the cavity and the U-bolt.