Unbelievable....Austria's Green Lake in the Hochschwab Mountains is a hiking trail in the winter. The snow melts in early summer and creates a completely clear lake. The lake has a grassy bottom, complete with underwater trails, park benches, and bridges. So cool!
Gruner See (Green Lake) is a lake in Styria, Austria known for its shimmering, emerald-green hue and its fluctuating depth throughout the year, at times leaving a park completely submerged in it. The site has proven to be an attraction for divers, inviting them to plunge in and explore the spectacular underwater park, fully adorned with a bridge and a bench. There are even submerged trees in the crystal-clear waters that gives it a magical look.
As manatees can’t survive in water below 60 degrees, they migrate to Kings Bay and the adjacent rivers every winter, which are an average 72 degrees all year round. So from November through March 2012, you can head to Crystal River, which is 70 miles north of Tampa, where it is the epicenter of manatee-watching, and go swim with these giant but affectionate creatures. >>> This looks so fun!