The island is the caldera of an active volcano, which caused serious damage to the local scientific stations in 1967 and 1969. The island previously held a whaling station; it is now a tourist destination and scientific outpost, with research bases being run by Argentina and Spain. Various countries have previously asserted sovereignty; it is now administered under the Antarctic Treaty System.
Swimming in Deception Island
The former whaling station now has tourist facilities and services where tourists can enjoy natural hot springs.
Lewis Pugh was the first person to swim a mile in the caldera of Deception Island without a wetsuit or any protective gear. Pugh swam in the 2°C (35.6°F) water for 30 minutes and 30 seconds to complete his mile swim in 2005.
Others have swum shorter distances: