I recently sat down at a very small rock pool high up on the shore on Castle Beach in Falmouth. Just sitting down and concentrating on one square meter for a bit is essential to discover small organisms (see also this old post). If you want to end up with some half-decent photo’s, it is essential to go back several times to the same spot too, so that is what I did. The pools in this spot are very shallow, too shallow to stick your head in and look through the view finder, and often too shallow to even get the camera submerged. Biological diversity this high up the shore is relatively low. Common in these pools are periwinkles, flat top shells and thick top shells, beadlet anemones, prawns and shore crabs, as well as Serrated wrack and a diversity of small red seaweed species.Along with Shanny’s, juvenile Montagu’s blennies Coryphoblennius galerita are very common here (larger individuals must move to deeper pools lower on the shore). I only saw fish between 1.5 and 2.5 cm, tricky to photograph, I need a macro lens! Looking more closely, this tiny pool harboured snakelocks anemones alongside the beadlets, as well as a tiny Gem anemone Aulactinia verrucosa.