Velká Amerika or Czech Grand Canyon is an abandoned limestone quarry 
It is 800 metres long, 200 metres wide and 80 to 100 metres deep with an 18 m deep lake on the bottom. At first this place was popular among nudists 
, now is sought after by professional divers and ordinary tourists.
How to get here: 
by bus – bus 311 from the bus station Zličín to the stop Mořina (about 45 min).
by car – Mořina village, Central Bohemian Region (in Beroun District).
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