Aerial view of the open grotto known as Grotta Sfondata on cliffs along the coastline, Otranto, Lecce, Salento, Apulia, Italy, Europe

photography vertical color image travel destinations travel no people outdoors day apulia italy europe salento grotto otranto lecce province cliff landscape coastline water's edge sea water grotta sfondata aerial view clear sky sky hole rock seas ocean oceans rocks rock formations rock formation outdoor outside nobody no one no person landscapes daytime cliffs