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The first one is bark / wood chip, the second is rubber matting.
All playground equipment with a fall height 600mm or more in Australia have to have
an impact reduction surface these days. ( The things I learn these days thanks to steemit!)
Some research I came across suggested that this has not reduced the incidence of fractures at all, but I do wonder if the play equipment has become less fun. Taking out every risk of a fall has made some equipment pretty boring looking.
Perhaps I'm showing my age, but the seesaws don't even go up and down anymore, they just kind of wobble.
Or as the Brady bunch taught me when Cindy and Bobby went for a record, I think most north Americans call them teeter-totter. I remember my siblings and I found the term highly amusing for some reason.