"Pee trees" and community designated public pee spots

[Havelock 1,526]

The parks with no bathroom thread inspired me to make this new topic. On that thread I mentioned that at some parks and playgrounds the community seems to have mutually agreed upon pee spots and even given them names. For example one park near us has the “pee tree” that many parents take the kids. The older ones may be instructed to go to the "pee tree" or have just learned to take themselves to pee on / squat behind it.  Another park has a space between a line of bamboo and the exterior wall of the neighboring property. Squatting behind he bamboo or peeing on the the wall is common. 

Has anyone else witnessed these de facto or community designated/named pee spots?

Did you grow up with a "pee tree" or some similar spot to pee?