"Edisto" then sailed for Edinburgh, Scotland, arriving August 12, 1974. She departed Edinburgh on August 17, 1974 and headed for the Icelandic Sea for the second phase of her cruise, where she worked in conjunction with the Icelandic government. Her crew took 40 "Nansen Casts" in the Icelandic Sea and then, on September 2, 1974, made Reykjavík. "Edisto" departed Reykjavík on September 5, 1974 and sailed for the Labrador Sea for the third phase of her cruise. Arriving off Cape Farewell, Greenland on September 8, 1974, her crew took 52 "STD Casts" in the Labrador Sea and along the coast of Labrador, Canada. On September 14, 1974 she finished the third phase and began her return journey to Baltimore, arriving there on September 24, 1974.