A glacial lagoon where huge icebergs calved from the Vatnajökull ice cap drift in still, deep water before floating out to sea — and wash up as glittering shards on the black-sand 'Diamond Beach'.
Los Glaciares National Park, Santa Cruz, Argentina
A vast, active glacier in Argentine Patagonia whose towering blue ice face calves thunderously into a lake — one of the few large glaciers on Earth that has stayed roughly in balance rather than sharply retreating.