Light float (2)
A boat-like structure used instead of a light buoy in waters where strong streams or currents are experienced, or when a greater elevation than that of a light buoy is necessary.
Source: IHO Dictionary – S-32, provided by the IALA ARM Committee in paper ARM7-12.1.7 in 2017.
This supercedes definition number 8-2-020 in the original IALA Dictionary edition (1970-1989).
International Hydrographic Organization
International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM
Aids to Navigation Requirements and Management Committee (IALA)