I'm afraid of concrete + water!
I can swim quite well.
I'm not afraid of any natural bodies of water, even if the water is not clear, such as a pond or river.
BUT when you add large, rough, man-made structures with water, things get scary!!
The pillars of bridges (nothing else about a bridge, just the pillars in the water), a dam, a lock, swimming pools (especially indoor swimming pools)...all those sorts of things, I get very afraid. I frequently have nightmares about swimming in dark water surrounded by concrete pillars and ledges, or very dirty and old indoor pools. If I toured a dam, I'd probably go ape shit and then pass out.
In elementary school, we went on a field trip on a boat tour that went through a lock. I was so fearful, and the experience is still with me as if it happened yesterday, it's so scary and so disgusting.
Is anyone else like this? Anyone know what this fear might be called?