I asked some Spanish-speaking people at the park what to call the slide. They said (it sounded like) baladilla / valadilla. However, I can't find this in any dictionary -- and they may have thought I meant the whole playground, not just the slide.
Does anyone recognize that word? What do you call a playground, and a playground slide?
I haven't seen a playground slide like the one in this picture from google images since I was a kid . . . they are all plastic now, so the daredevil little kids can't go so fast!