Dan yr Ogof is a 17-kilometre long cave system in south Wales, within the Brecon Beacons National Park. It is the main feature of a show cave complex which is claimed to…
#great britain, #stalagmites, #Stalactites, #spelunking, #wales
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Six Sisters, Alamo square, San Francisco, California
Six Sisters, Alamo square, San Francisco, California#Six Sisters, #Alamo square, #San Francisco, #California