15 Top Cold-Water Dive Sites Around the World

Grüner See

Grüner See (Green Lake), Styria, Austria; Guide: Seehof Inn (seehof-gruenersee.com); The Austrian Alps are an unlikely scuba destination, but the Grüner See (Green Lake), a small mountain lake in Styria, sees its share of divers. In early summer, snowmelt raises the water level from eight feet to nearly 40 feet. And this crystal-clear water actually floods the surrounding park along the banks, allowing divers the rare opportunity to swim the walking paths complete with park benches and footbridges.