In 1972, the Gold Rush log flume water ride was added, and two years later Geauga Lake added the Skyscraper, which took passengers up 21 stories for views of the park. Admission to the park was free until 1972. Until then, rides on various attractions were purchased on a pay-as-you-go basis. Beginning in 1973, the park converted to an admission charge with a pay-one-price for all the rides and attractions. The Geauga Dog became the park's mascot and would remain so until 1999. In 1976, the park added the Wildcat compact steel roller coaster, and a year later the park added the Double Loop, a looping steel coaster. For a time, the park ran a short-lived series of TV commercials featuring Geauga Dog and a singing, dancing adolescent boy performing a song about the park. The boy's off-key singing and awful dancing were deliberate, a means of getting viewers to notice the ad. It succeeded.