Sea spinach, sea rocket, goose tongue and beach peas were all plentiful and tasty. Blueberries are in middle fruiting stage. Cranberries have unripe fruit with orange or red coloring on a single side. Nine harbor seals basked in sunshine on a near-shore rock that seemed to offer at least a half mile of isolation in all directions from human disturbance. At low tide mussels are plentiful in the rocks, among seaweed.
Periwinkles prey on some of the mussels by drilling through the shell.
Both mollusks are edible, except for mussels damaged by periwinkles. The clam rakes of fifty and more years ago had longer teeth, and wider spacing than those in use today. I'm told this is because larger clams were found in those days. I verified this for myself. The depth of clams below the air hole on the surface of the sand was roughly in direct proportion to their size.