Wikipedia
LARC-V (Lighter, Amphibious Resupply, Cargo, 5 ton), is an aluminium-hulled amphibious cargo vehicle capable of transporting 5 tons. It was developed in the United States during the 1950s, and is used in a variety of auxiliary roles to this day.
In addition to the United States, Larc-Vs have been used by military forces in Australia, Argentina, Portugal, the Philippines and Iceland. Approximately 968 were made. About 500 were destroyed, most by scuttling during the American withdrawal from South Vietnam. About 200 have been retained in U.S. military service, Roughly 100 are privately owned and mostly used for tourism operators including a number of LARC vehicles is in use on Iceland for tourist trips on the Jökulsárlón ice lake and four LARC-V's used in Halifax, Nova Scotia for city and harbour tours.