In warmer weather, water from melting snow and ice collects in a basin near the terminus of Cavell Glacier, which then calves off icebergs. This water is sometimes called "Cavell Lake", but that actually refers to a real lake located somewhat north of here. The stripes in the glacier are formed by alternating layers of ice and dirt that settle seasonally -- ice in winter, dirt in summer -- making the glacier look almost like an oddly-colored salmon filet.
Notice the ripples in the pool, which were not caused by a thrown rock. Part of what makes icebergs so dangerous is that sometimes they melt more rapidly on the bottom than the top; this makes them unstable, and they can flip over without warning, as occurred here just before I captured this image.