Ladder bridge mat
Lake raft
Laminar device and method for making same
Land and water based flash flood detection and warning system
Laterally unstable small water craft with stabilizing wings
Launchable diver surfacing signal
Launching sheet for windsurfers
Layered composite material
Leash connector and sports board combination therewith
Leash for an aquatic sports board
Leash for an aquatic surfcraft
Leash for securing a surf craft to a limb of a person
Leash mount for floating boards
Leash release mechanism for surfboards and the like
Leg buoy for training swimmers
Leg immobilizer-drag for training swimmers
Leg rope for a surfboard
Leg support for aquatic skis
Lever action swim fin
Lidar detection using shadow enhancement