Evergreen Aviation Museum has a playground free to the public that is aviation related, which I think is pretty cool! Their structures and equipment are all space and air related. Planes, rockets, and spaceships! They have an airplane that the kids can pretend to fly and slide out of, a rocket to launch that has slides at different levels, little plane rockers, and a big spaceship or space station, use your imagination it is whatever they want it to be, like structure with slides, tubes, ropes, block walls to climb on through and around. They even have a track for little«planes» to race each other on, teeter-totters for toddlers and teatottlers or tippers. It does get a little warm on hot days since their isn’t any shade, however you can pop right into the café and get a refreshment or a little lunch or head over to the waterpark for a dip in the pools or catch a flick in the IMAX next door!