A wireless doorbell like ours prevents the need for any Guests having to lean over and try to knock on your vessel, which isn’t always easy to do. We keep our interior plug in chimer in the Pilothouse which is centrally located.
Also if one party has returned with provisions easily calls for help.
Depending on your wireless doorbell purchase a second doorbell may be included which makes for a great portable doorbell install while visiting other marinas.