amphitheater in black and white

amphitheater ancient archeology architecture background biological biology black botryllus brain canal canals close closeup colors constructions coral cratena diving escaping felimare fish flight flower flying fresh gondola grand grazes invertebrate lagoon lake large lido lighthouse mandarin marine nudibranch nudibranchs oasis orange parasites park photographed photography picta pier pink prey red reptile roman sea seagull snorkeling specimen spirograph sponge sponges sun surface tentacles texture tourists tyrrhenian underwater venice visible watchtower water white