This came back to me from Port Lockroy, having been carried down there aboard the Barque Europa. The Europa is a steel-hulled barque built in 1911. It is now a Dutch registered ship, purchased in 1984 and fully restored. The company that owns it offers working cruises where passengers assist the crew with some of the daily tasks aboard the ship. They offer an "Antarctic Expedition" cruise that starts and ends in Ushuaia. It takes you across the Drake Passage and makes a few stops along the Antarctic Peninsula.