I hiked up 750 ft tall Observation Hill this afternoon. The hill dominates the McMurdo Station landscape, and the view from the top is spectacular, with 12,448 foot Mt Erebus volcano to the north east and a 360 degree view of Hut Point Peninsula. It's a hard hike because there is some snow, it's very steep, and in places loose volcanic rocks. It warmed up all the way to 7 degrees, but it was dead calm and sunny, so comfortable enough to hike. Observation Hill was used to watch for parties returning from the far South during the early expeditions.