Mark Simkins and Kitty Wolfe were at The Sea Ranch when they saw this at low tide - thousand of mussels.
Other creatures to look for are Sea Urchins. Craig Tooley took this photo.
And Sea Stars, this one photographed by Noel Olson. It is an Ochre Sea Star.
Thanks to Mark, Craig, and Noel for allowing me to share their photos with you here. Tide pooling is a Coast tradition.
To see much more of Craig's nature photography, here is the link to his website: www.ruffimage.com.