Alright, I gave away that it is an eye. If you know what kind of animal this is, please comment below. Hint: it is not a fish.
Night dive at Yellow Sub House Reef, Bonaire.
AnimalsBonaireCephalopodaCommon OctopusDierenInvertebratesMolluscaOctopusesOngewerveldenPlacesUnderwaterUnderwater BonaireVariousYellow Sub
I have no idea...but it is a terrific shot!