I don't have many photos of my wife changing at the beach. If it's a nude beach, sometimes she arrives only wearing a dress and no underwear, which hardly counts as changing (although I have photos of that, indeed I've already shared one). Or it can be difficult to take photos at the nude beach anyway.
Here we were walking by the coast. The sea looked so inviting, so we stripped off for a skinny dip. It wasn't a nude beach, so we moved a few metres away from the little beach where another couple were bathing and went for a beautiful swim by the rocky shore. Happy days