I don't go to the beach during summer much but we had a picnic with some friends this weekend and it started in the late afternoon so was an easy thing to do. This is a local beach (Wingaersheek) which overlooks the the bay that the Annisquam lighthouse is in (you'll see it in the far right of this picture). You pay $20 for parking until 5pm, but after that you can go for free.
Even though there were many people on the beach I was interested in what a long exposures of this clump of rocks would do with the ND#110 filter. I really like how the people all but vanish. You have to stay still for probably about 15sec to register on a long exposure like this. The two winners are a watchful father in the background looking out for children who were swimming beyond the rocks and a pair of mothers in the foreground on the left talking to a friend. Someone also stopped long enough to take a photograph as they walked past.
One parent came up to me not sure what I was doing with my camera on the beach - his children were playing nearby. It is sad that a man with a camera can be a creepy thing, but I understand his concern.