The mantle beneath rose some 200 million years ago, resulting in the elevation of the lake floor.

UNESCO: Culture

Offshore production means any platform structure that is affixed temporarily or permanently to offshore submerged lands and that houses equipment to extract petroleum and natural gas from the ocean or lake floor.

FORBES: Just Tell the "Fracking" Truth

On the valley floor stands the frozen lake of St Moritz -- home to an unlikely event of similar vintage -- "White Turf" -- horse racing on snow and ice.

CNN: Cool racing: Horses battle on snow

Unfortunately when adapted for film and TV the good stuff often ends up on the cutting room floor in favour of a handsome actor walking out of a lake.

BBC: NEWS | UK | Magazine | Jane Austen - why the fuss?