An audio system in a marine vessel may be created or enhanced using existing parts of the marine vessel. One or more audio transducers may be secured directly to the windshield, and once connected with an audio input, the windshield acts as a transparent speaker.

An audio system in a marine vessel may be created or enhanced using existing parts of the marine vessel. One or more audio transducers may be secured directly to the windshield, and once connected with an audio input, the windshield acts as a transparent speaker.

An alert control system includes a memory, and a processor coupled to the memory, wherein the processor is configured to: receive a first input of an anchorage instruction or a second input indicating an anchorage state, and perform, in accordance with the first input or the second input, control to reduce a number of kinds of triggers which output an alert.

An alert control system includes a memory, and a processor coupled to the memory, wherein the processor is configured to: receive a first input of an anchorage instruction or a second input indicating an anchorage state, and perform, in accordance with the first input or the second input, control to reduce a number of kinds of triggers which output an alert.

A display system for use in a pool or a small body of water. The display system including an anchor, a floating platform tethered to the anchor, and at least one display element. The floating platform is generally flat. The generally flat floating platform provides buoyancy. The display element protruding up from the floating platform.

A display system for use in a pool or a small body of water. The display system including an anchor, a floating platform tethered to the anchor, and at least one display element. The floating platform is generally flat. The generally flat floating platform provides buoyancy. The display element protruding up from the floating platform.

A mooring buoy reservation system is disclosed. The system comprises a mooring buoy that has the ability to enable or disable a tie up point on the buoy. The buoy has a microprocessor in communication with a server. And the server is in communication with a boat device.

Also a method of a subscriber reserving a buoy through the server, paying for the buoy's use, and mooring to an enabled buoy is disclosed.

An emergency location information service (E-LIS) for water-based network devices. The E-LIS includes a server application and server network devices that accepts emergency messages from water-based network devices. The water based network devices comprise one or more sensors or one or more actuators, a wireless connection interface including a wireless low power wide-area ultra-narrowband network interface and a wireless low earth orbit satellite network connection interface and is an automated network device capable of sensing is own environment and automatically sending out the one or more emergency messages or one or more emergency text messages without operator input to an E-LIS server network device when an emergency event occurs on a body of water. The E-LIS server network device provides a current physical geographic location for such water-based network devices and/or users of the water-based network devices in an emergency situation on the body of water such as a river, lake, sea, ocean, etc.

An emergency location information service (E-LIS) for water-based network devices. The E-LIS includes a server application and server network devices that accepts emergency messages from water-based network devices. The water based network devices comprise one or more sensors or one or more actuators, a wireless connection interface including a wireless low power wide-area ultra-narrowband network interface and a wireless low earth orbit satellite network connection interface and is an automated network device capable of sensing is own environment and automatically sending out the one or more emergency messages or one or more emergency text messages without operator input to an E-LIS server network device when an emergency event occurs on a body of water. The E-LIS server network device provides a current physical geographic location for such water-based network devices and/or users of the water-based network devices in an emergency situation on the body of water such as a river, lake, sea, ocean, etc.

A fin for a water sports board capable of receiving one or more insert accessories is provided. The insert accessories may operate to add a functionality to the fin, and to any board the fin is attached to. Typically, the fin disclosed may be used with a surfboard, paddleboard, or similar water sports board.