A lightweight constructed navigation buoy, and method for handling the
same, is provided with waterborne stability comparable to the
conventional and much heavier navigation buoys. The desired waterborne
stability is achieved using a liquid-ballasting/-venting system in which
a ballasting compartment and a connection cooperate to allow a liquid
ballast to be added and/or removed from the ballasting compartment. The
position-accuracy of said buoy can be improved by incorporating the
liquid ballasted buoy with a high-strength, flexible, elastic tether
providing a scope of between 1.5-to-1 and 1-to-1 at high water.