Marineland of the Pacific is considered the first American theme park, and predated Disneyland by one year. Lacking freeway access and thrilling rides, the park struggled with attendance in its last years and closed in February of 1987. This photo was taken just a month before the close. As you can see from the delighted faces in the audience, the park still knew how to put on show, or should I say the animals? | Click image for Comments. | Home | Browse All Photos