underwater macro life in the lembeh straits of indonesia

animal blue bottom bright chromodorididae chromodoris closeup coral crawl dive dweller gastropod gastropoda gastropods glide holiday indonesia invertebrate invertebrates kbr lembeh life marine mollusca mollusk mollusks nudi nudibranchia nudibranchs ophisthobranchia opisthobranchia opisthobranchs reef retreat scuba sea seabed season shell silver slug slugs snail starfish straits sulawesi tropical underwater vacation walk water white willani