We crossed the stormy Bransfield Strait between the Antarctic Peninsula and the South Shetland Islands, a forewarning of the Drake Passage to come. We sailed into an active volcano through the narrow Neptune's Bellows of Deception Island. The calm, wide waters of Port Foster greeted us as we prepared to explore the industrial archaeological ruins of Whalers Bay. The scale of the ruins reminded us of the industrial-scale slaughter and exploitation of the Southern Oceans and strengthened our resolve to do more to actively protect Antarctica. We traced Capt. Nathaniel Palmer's footsteps along the volcanic sand beach to Neptune's Window, a gap in the wall of the caldera. It is from here that Nathaniel Palmer looked to the southeast and could see the Antarctica Peninsula, and he was the first to record this event in the ship's log. To celebrate our last landing on this voyage, filled with highlights, we decided to take a polar plunge into the waters of Port Foster. Despite being an active volcano, the heat had not transferred to the waters of the bay.