Not far from the coast of Antarctica is an island called Deception. Although it looks like a safe haven (and it usually is), the island is actually an active volcano. It last erupted in the 1960s, causing severe damage to local research stations. The island's latent threat can still be identified thanks to the special rainbows on the beach.
George Kurunis captured this image on November 25th. According to him, he was on the beach when he noticed her. Hot water flows under the beach that surrounds a huge caldera. The sand literally smoked from the volcanic heat below. When the sun came out, a steam arc could be seen. In the background, you can see the rigid inflatable boats used for landings. It was RCGS Resolute's maiden voyage and also the last day of landfall before sailing back across the Drake Passage to South America. As noted by Kurunis, "an excellent choice to complete a trip to Antarctica."
Steam arcs (steambows) are distant cousins of the rainbow. They appear when sunlight strikes clouds of tiny water droplets. Light is backscattered and diffracted, resulting in a pale, iridescent-bordered arc.