Peter I Island Peter I Island Peter I Island () is an uninhabited volcanic island in the Bellingshausen Sea, from Antarctica. It is claimed as a dependency of Norway, and along with Bouvet Island and Queen Maud Land comprises one of the three Norwegian dependent territories in the Antarctic and Subantarctic. Peter I Island is long and , slightly larger than Staten Island. The tallest peak is the ultra and tall Lars Christensen Peak. Nearly all of the island is covered by a glacier and it is surrounded most of the year by pack ice, making it inaccessible during these times. There is
Bouvet Island pack ice. The Bouvet Triple Junction is located west of Bouvet Island. It is a triple junction between the South American Plate, the African Plate and the Antarctic Plate, and of the Mid-Atlantic Ridge, the Southwest Indian Ridge and the American–Antarctic Ridge. The island is located south of the Antarctic Convergence, giving it a marine Antarctic climate dominated by heavy clouds and fog. It experiences a mean temperature of , with January average of and September average of . The monthly high mean temperatures fluctuate little through the year. The peak temperature of was recorded in March 1980, caused by