Intertidal by Moonlight

The full moons of winter months provide a unique opportunity to explore the intertidal zone at night.  When the tides are low and the moon is full, IIMHO volunteers head out in search of creatures not visible at other times.  These nighttime walks are a particularly good time to see a wide variety of nudibranchs, such as the frosted dirona in the slide show below.  This beautiful, flamboyant little creature was captured on film swimming upside down.  It then spun around before darting into a hiding place.

Photos by Steve Albouq