I grew up in an area of Massachusetts that is part of the Bridgewater Triangle, which is a large area in the state where weird, strange paranormal and other events occur more often (supposedly) than outside of that area.
When I was 20, I was dating a guy named Ed. I related this story several years ago to a Bridgewater Triangle researcher, so this story appears elsewhere on the web somewhere (or it did at some point). Not sure if I used a pseudonym for Ed, but anyway, Ed was his real name.
Ed and I were parked in the main parking lot at Lake Nippenicket, which is also known locally as The Nip. We were in my 1975 Ford Mustang, probably making out. Across the lake from us, we noticed a huge bonfire on the beach, with several people dancing around it. Ed thought it might be some friends of his, so we decided to drive over there and check it out. He drove, since he knew the way in and out of that part of the Nip. It was bumpy old dirt roads (not ideal roads for a Mustang).
Once we reached the area where the bonfire was, there was no sign of a bonfire, nor did it look like there had been one there anytime recently. We stood on the beach, gazing across at the parking lot where we’d been parked before, certain we were in the right spot, but we looked up and down the beach and saw 
nothing. It was also dead quiet. If it was further along the shore, we’d have at least seen a glare from the fire reflecting off the water and we definitely should have heard voices. We saw and heard nothing, and there was just this creepy feeling while we were there.
We sat in the car for a few minutes, looking at the water, and we saw something rise up out of the water. It looked like a snake or turtle head, definitely something organic, maybe about 6 inches across….with one giant eye in the center of it, staring at us like a periscope.
That was it for us! Ed started the car and we drove back out and back over to the parking lot across the lake. Once back on the opposite shore, we could again see the bonfire as well as the group of people dancing around it. We had definitely been in the right spot, there’s no doubt in my mind.
