The dry fountain by Pavilion No. 31, Geology (formerly Linen and Other Textile Crops)
A dry fountain is essentially a set of jets that come directly out of the ground. It's referred to as dry because it doesn't have the usual fountain bowl, and so it's impossible to bathe in it. However, you can run around, splash water at other people and have lots of fun in a dry fountain! Just make sure you wear rubber flip-flops or crocs as it's only too easy to slip and fall if you run around barefoot.