Yes, the risk is part of the fun, but you may get caught in ways you didn't expect.
My first wife and I honeymooned at a remote cabin on an island, but we knew there were other cabins here and there on the same island, and, not much pre-trees visibility in either direction on our portion of the beach, so someone could come along the beach at unexpected moments.
I had always wanted to have sex on the beach, and my bride was willing, but she had one condition... "ONLY at night." She'd feel safer that way.
I wondered if she'd ever seen a teen horror movie, but I agreed.
We had intercourse on the beach the second night, which was clear and moon-bathed and brilliant with stars. We started out mostly clothed, out of caution, but got really turned on and ended up getting buck naked. I loved seeing her body in the moonlight, feeling the cool breeze on us, the sensation of just surrendering to it all, the lights in the distance, on other islands.
But not the large, sloppy tongue that slathered across the back of my left ear, or the inhuman panting sound. It was right after my bride's second climax, with me still inside her, and both of us had been oblivious. I jumped up and popped out (I'm not sure in which order), and discovered the large friendly Labrador who had discovered us. My immediate thought was that he might be in human company, but unless said company was hiding, he was alone.
My naked bride got up, too, brushing sand, and we just stood there laughing and then picked up our clothes and blanket and went back to the cabin to continue the festivities. The dog was not invited.