massive stones rocks lying on the beach as a border between pebble beach spiaggia del frate and adriatic sea waves and flows.

adriatic ancona background beach blue boulder breakwater breakwaters coast coastal coastline cutwater del eroded flow foreground formations frate group groyne horizon italy landmark landscape limestone many marche marina massive mediterranean nature numana pier rock rocky scenery scenic sea seascape seawalls shape shore spiaggia starling stone stones tourism travel water waves