A subsea structure monitoring system can include a base device configured to be secured to a subsea structure. The subsea structure monitoring system can also include a release mechanism disposed within the base device, where the release mechanism has a default state and a released state. The subsea structure monitoring system can further include a buoy detachably coupled to the release mechanism, where the buoy includes a housing that houses a communication module and a switch. The subsea structure monitoring system can also include a trigger that is configured to convert the release mechanism from the default state to the released state. The release mechanism can be converted from the default state to the released state when the trigger exerts a minimum force on the release mechanism.

An undersea aid delivery system for storing emergency supplies on a floor of a body of water is provided. The undersea aid delivery system can include a housing, a tethering system, a communication system, and buoyancy system. The housing can have an interior cavity for storing emergency supplies. The interior cavity can be accessible via an opening in the housing. The tethering system can be coupled to the housing. The tethering system can include an anchor for coupling the housing to the floor of the body of water and a release mechanism for selectively releasing the housing from the anchor. The communication system can be disposed adjacent the housing and can receive a signal to activate the release mechanism of the tethering system. The buoyancy system can be coupled to and disposed adjacent to the housing. The buoyancy system can control movement of the housing in the body of water.

An undersea aid delivery system for storing emergency supplies on a floor of a body of water is provided. The undersea aid delivery system can include a housing, a tethering system, a communication system, and buoyancy system. The housing can have an interior cavity for storing emergency supplies. The interior cavity can be accessible via an opening in the housing. The tethering system can be coupled to the housing. The tethering system can include an anchor for coupling the housing to the floor of the body of water and a release mechanism for selectively releasing the housing from the anchor. The communication system can be disposed adjacent the housing and can receive a signal to activate the release mechanism of the tethering system. The buoyancy system can be coupled to and disposed adjacent to the housing. The buoyancy system can control movement of the housing in the body of water.