morigerati - ponte in pietra sul fiume bussento

morigerati oasis wwf oasi grotte bussento cave river torrent stream waterfall mill water source gorge riverbed path staircase steps bridge small monorail hut fountain drinking panorama excursion hiking trekking naturalistic natural cavity nature limestone sinkhole geology geological grotta cilento vallo diano alburni national park see unesco lucamato gulf policastro salerno campania italy