Next is Goosey, Goosey Gander.
My favorite is Willie the Whale. As can be seen in the second image, kids can walk down the steps to meet Willie close up. As the advertising for the Fairyland states, Willie actually squirts water.
Also in this group was this image of a large modern sculpture and playground structure in the shape of a giant grasshopper. I believe this is also at Lake Merritt park in Oakland.