The playground is composed of large blue blocks that kids can use to create whatever they want. Physics and engineering concepts actually come into play with this too. R built towers and knocked hem down, but lots of other kids were making their own playgrounds or paths for balls to travel down. It's advertised for ages 3-8, but there were some younger and some older there.
Of course we also wandered around to look at the animals and spent some time on the playground too. No trip over there is complete without it!