Right across the street from Keller Auditorium in downtown Portland, Oregon you will find one of the most unique fountains Portland has to offer. Keller fountain is a multi tiered fountain that you can actually sit in and wade in on a nice hot day. Some of the areas are deep enough to swim in and you can go under the waterfalls. There are some severe drop-offs so be sure and talk to your kids about where they can and cannot play. There is not a bathroom in this park, but there is one nearby inside a parking garage like structure.