Any boat or vessel of 12ft length overall or over, owned by a resident of Guernsey, Herm or Jethou, is required to be registered with Guernsey Harbours. See the Local Boat Registration page for further information.
All boats capable of 17 knots and over, irrespective of size, must carry third party insurance. This includes jet skis. Any owner allocated a marina berth or mooring in either harbour, is also required to insure his/her vessel, irrespective of speed.
If you wish to apply for a mooring or berth, refer to the Marinas & Moorings section.