Samsara,
Yes, but not the beach specifically, but I have dreamt of beautiful surroundings and the dream was very vivid and clear and peaceful. I have plenty of dreams like that and when I wake up I always feel so... blissful.
But it doesn't sound like it was lucid/astral but it does sound like a great dream overall.
Blissful
A while ago I dream't that I was at a beach/sea area where there were children playing. It was almost like a playgroup. I vividly remember the dream and I remember talking to someone, almost as though this person was the minder of the children although I couldn't remember what I or the other person said to each other. I thought this might have been a astral trip because it didn't feel like a typical dream. There wasn't any abstraction. The beach area was really pleasant and it felt so peaceful and relaxed. Has anyone else encountered places similar to this?
Samsara