12th. There was a very strong wind the following day and I did not dare go out to sea. I walked on the shore in the morning when the tide was low. The tide comes in twice in every 24 hours and takes 6 hours between the low and the high tide. That is, 4 tides each day, 2 ebb-tides and 2 flood-tides. They increase with the moon. Various species of fucus lay on the lonely shore, growing on rocks or shells.1