Six Flags Marine World, located in San Francisco, features the usual stomach-churning rides, as well as sea lions, dolphins, and a killer whale named Shouka. The park has picked May 27 as "Home School Day." Price: $18.99 per person. According to their e-promo, that's $29.00 "off the regular general admission price."
At those prices, a Home Equity Loan is practically required for a largish middle-class family to enjoy the company of Shouka and friends.