Secure your boat to the dock with a hardened alloy steel chain or vinyl covered aircraft type cable. Chain your boat to something secure with an equally secure chain. On small open boats, run the chain under a seat. At the Marina Investigate security measures taken at the marina. Encourage the use of security officers, patrol vehicles, alarm systems, and controlled access.
Good lighting is an effective crime prevention measure.
Promote adequate all-night lighting at your marina. Use automatic timers on your boat to turn on a light and a radio. Darkness and silence are a signal to a burglar. Get to know the people at your marina. Let them know who they can expect to see on your boat when you're not there.