Zavodovski Island, one of the 11 in the South Sandwich chain, has an active volcano and no signs of bird nesting areas or seal colonies.
Zavodovski Island is the northernmost of the South Sandwich Islands, which extend southward in a shallow arc open to the west.
After visiting Zavodovski Island, we came back to an interesting pair of twin islands, Candlemas and Vindication, also in the South Sandwich chain, which are both active volcanoes with a one- or two-mile wide channel between them (where we spent the morning sampling).
South Sandwich Islands — 70South - Antarctic News, Antarctic Information, Interactive and Updated Daily...(Site not responding. Last check: 2007-10-31)
The South Sandwich Islands consist of 11 islands (from north to south): Zavodovski, Leskov (the smallest), Visokoi, Candlemas, Vindication, Saunders, Montagu (the largest), Bristol, Bellingshausen, Cook and Thule.
The Russian Fabian von Bellingshausen became the first to see the three most northerly islands in 1819, and landed on Zavodovski Island, naming it for Lieutenant Ivan Zavodovski (captain of his ship, the "Vostok") on Christmas Eve of 1819.
The South Sandwiches are claimed by both Britain and Argentina, and about a million breeding pairs of chinstrap penguins can be found on Zavodovski Island alone, making it one of the world's largest penguin colonies.
Are there any volcanoes in Antartica or in the north pole?(Site not responding. Last check: 2007-10-31)
It formed when caldera collapse took place, and the ocean has managed to break through the ring to form the crescent.
Other volcanoes in this southern region that are not really part of Antartica are Zavodovski, Visokoi, and Bristol Islands, in the South Sandwich island group, as well as Marion Island and Herd Island, in the southern Indian Ocean.
I noticed that your e-mail address is from a public library, so you should take a look at a couple of books that have good maps of the area.