From 1949 until her transfer to the U.S. Coast Guard on October 20, 1965, "Edisto" continued her support to exploration in both Arctic and Antarctic regions. The icebreaker supplied bases, reported ice packs and floes, took part in oceanographic, hydrographic, geological, coast and geodetic, and hydrophone surveys, and participated in Arctic convoy exercises. In 1949, "Edisto" took part in Operation Bluejay, the construction of radar stations in the far north. The following year, on August 6, 1950, "Edisto" set a record for northernmost penetration by reaching latitude 82 degrees North while conducting oceanographic surveys. In 1952, the work she had begun in Operation Bluejay was completed.