I had a little place there from 86-95 on the bay. Miss it. Not as crowded on the beaches as New York-Long Island beaches usually. If you are ever on the end of the Cape, near Truro, try a small beach off Long Nook Road. Going towards Provincetown in Truro, on Rt 6, right hand side of the road. One winding mile down is a great beach. Or it was. Long Nook Beach. Saw Jackie O with her last man, Morris there one night. Big dunes. If you go down the dune to the beach and turn right, walk a 1/2 mile is a natural (they are editing (N*U*D*E) area (straight) with volley ball etc...
I always got hit on (by women) at that area. Once or twice aggressively. Wonder if it is still like that? I heard it was a lot busier with a parking lot. Wasn't one then.
One time a woman was on a folding chair, near a dunepath, with both legs wide open,one leg drapped over the arm. Christ I could see her fallopian tubes she was so open. I took a peek or two and smiled. When I passed by she openly sneared at me.
In P-Town, Herring Cove is nice. A bit rocky near the water. Miles of dunes and salt marsh around.At the parking lot the straight people are too the right side of the opening. Then the RV families and then open for miles.
At the lot take a left and the first section is the Lesbian area. Topless, but, I would not linger there starring. The are organized.

But, if you are a hot guy and plop down on a towel they won't mind and might chat you up. Keep on going left and the gay(men) area is next. After that is more miles of Dunes. The water comes into the backwater area through the jetty at high tide and you can often swim in there. Water is always cold in the cape. Slightly warmer here when the sunny beach warms it. Walk further past that and a dune opening there are two small Light Houses. Woods End and Long Point. Town used to be out there but, they moved the housed to the other side 200 years ago.
Race Point is the other P-Town Beach, near the airport. Very sandy and family (mostly).
La Brea tar pits? Museum. Guess that is touisty, In LA area. I love saber toothy..mastodony type thingees.
San Diego. Great climate. Near Mexico (Tijuana), nice beaches. Zoo. A lot of Military points of interst. Navy, Marines. Coronado Island, La Jolla. I enjoyed it.