In the movie a summer place was there really pine island?

Yes, there was a real place called Pine Island that served as the setting for the movie "A Summer Place".

Situated on the coast of Maine, Pine Island is actually referred to as Islesboro in real life. It's a picturesque location with stunning shoreline, surrounded by Penobscot Bay.

The movie's story largely revolves around the fictional Pine Island during a summer period, where the main characters visit and develop relationships.