<p>Every spring, melting snow creates a dreamscape in Tragöss, Austria. Green Lake, which for most of the year is no more than six feet deep, expands with the inflow of snowmelt, swallowing part of the park that surrounds it: trees, hiking trails, benches, bridges, and all. The lake's depth reaches some 30 feet and provides a unique experience for divers—for a few weeks at least.</p>

Green Lake in Tragöss, Austria

Every spring, melting snow creates a dreamscape in Tragöss, Austria. Green Lake, which for most of the year is no more than six feet deep, expands with the inflow of snowmelt, swallowing part of the park that surrounds it: trees, hiking trails, benches, bridges, and all. The lake's depth reaches some 30 feet and provides a unique experience for divers—for a few weeks at least.

Photograph by Marc Henauer, National Geographic Your Shot

Travel 365: Best of December 2013

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