Google cruising g.ays (without the full stop) and the area you live in. It's eye opening...apparently even the change room at my gym is a good place to meet (and then go elsewhere to satisfy each other...or just have a w.ank if no one takes you up on the offer).
The playground thing of a night doesn't really bother me. I know a lot of hetrosexuals who have public s.ex in playgrounds. Not so much now, but as teenagers, absolutely. Especially for my friends who weren't allowed to do anything under their parents roof...they'd go for a walk and relieve their tension on a slide or sitting on a swing or whatever. I'm not naive enough to think that died with my generation. There's a very popular beach car park near me...always plenty of cars there after dark, parked a good distance away from each other. Pretty sure they're not there for the view.
I was surprised by how many local beats there are near me, but I just figure they're obviously being extremely discrete...there were lots of warning about being careful of families, or straight men in high traffic areas. A lot of the men who frequent beats generally don't want to 'out' themselves. As much as it would be awful for the wives to find out, I also think it's quite sad for the men that are frequenting these places because they don't feel they can be honest about their sexuality in their life. It's tragic.