WW : Austria's Underwater Park

" The green space which is flooded under 12m-deep waters once a year

During the winter, visitors to this park in Tragoess, Austria, can stroll along the path,

 sit on the benches and admire the stunning Austrian views. But as the temperatures begin 

to rise, so do the water levels of nearby Green Lake, fed by the snowmelt from nearby 

Karst mountains. During the summer the snowmelt floods the lake and immerses the park 

under 12 metres of crystal clear water ..."

PHOTOS & INFO CREDIT HERE