In the town I grew up in, the park was built over the corpse of a farm next to a lake. The farmhouse long since destroyed and the foundations covered by a playground. The edges of the lake are crowded by a peculiar weed that tangles around anything that falls in, this makes it harder for an adult to get back out unassisted and nigh impossible for a child to do the same.

There are, of course, no rails around the concrete pavement that rings the lake.