Years ago, when I was single and just started working, the company that I worked at that time recently moved to a new location, which is about 10 minutes drive to a well known national park in that area. Being single and horny at that time, I would often drove there during my lunch break, parked in one of the rest stops that has picnic tables and restrooms, I picked a parking spot that directly facing the entrance to the Men's room. I would ate my lunch and watched the guys went into the men's room, once I saw someone guy that I felt comfortable with, I would wait for about 2 minutes and followed him in. The way the men's room layout made it so easy to mess around with someone much more safer, as the door always made a creaking sound when it opened and one must make a left turn when entered as there was a wall blocking the view. Many times, I would come there for a quick jerk off, either let the guy jerked me or I'd jerked him off.
At this place where I've saw a thickest cock that I've not seen anywhere else, even today. The guy is a caucasian about my height, a little more stocky than me, he showed it to me while stood at the urinal pretended to be pissing. When I looked at his fully erected cock and I was completed "shocked" in term of how thick it was, I reached over and he'd let me touch it and the cock was so thick, I couldn't wrap my full hand around it. I know it was a natural girth and wasn't pumped, as I can tell the different. I would compared it to the size of a large plumbing pipe. I still thought about his cock every now and then when I see a large pipe around.
Now a day, it's no longer a "cruisy" place as Park Rangers are really beefing up in patroling that area.