Octopus - Cala Galdana, Menorca - España
Went snorkeling in Cala Galdana (Menorca, Balearic Islands) and found this fellow (Octopus vulgaris) over the sandy bottom (depth around 7m) and surrounded by Neptune grass (Posidonia oceanica). This is the second picture I took him - notice his defensive posture.
Common octopus (Octopus vulgaris)
Sony MPK-PHA Marine Pack