At Six Flags' Discovery Kingdom in Vallejo, you'll have the opportunity to meet the Looney Tunes characters including Sylvester the Cat and Yosemite Sam as seen here in this photo. Discovery Kingdom is half aquarium and zoo and half theme park with thrilling rides. You'll see tigers, lions, sharks, and dolphins along with thrilling and family friends rides for all ages. Additional animal encounters for a fee include a dolphin encounter and trainer for a day. The problem at this park is the available of healthy food choices. You'll find the standard burgers, pizza, and hot dogs, but difficult to find any healthy options.