being moved below deck on the central passageway), and other displays. Visitors coming in what was the original main entrance would walk under an arch that stood above a large slab of coquina rock with the words "Marine Studios 1938" on it in lettering, and up a walkway past the "Fudge Kitchen" to a ticket office at the south end of the Marine Studios structure. From there visitors could observe from the top deck of the tanks or wander the hallways below and observe through the numerous portholes in the walls of the tanks of both oceanariums. The "porpoise stadium" with its show tank and holding tanks along with bleachers would be added in 1952 as the park rapidly expanded. The stadium would showcase "Flippy" the educated porpoise. During that time dolphins were locally known as porpoises even though a porpoise completely different type of marine mammal. The reasoning for this was not to confuse with the dauphin fish as well as it was widely used local slang at the time. The roof was added to the stadium in 1961 as the show and animals in it were expanded. Also in 1961, the name Marineland started being used as opposed to Marine Studios in marketing and promotion. Expansion continued as the main walkway had a roof added, then famous large arches were installed in 1968 with giant letters spelling out MARINELAND above the new stadium roof and allowed the facility to be seen from some distance off approaching north or south on A1A. The top deck of the circular oceanarium was also reconfigured. An administration building in 1962 replacing an older one and a proper laboratory in 1953 were also constructed west of A1A as part of Marineland's growth in the 50s and 60s. Also through the 50s, maintenance and paint shops were constructed; this mostly built out the area immediately west of the "Marine Studios" structure. On the east side of A1A further additions included a large gift shop in 1954 and a fresh water exhibit built just east of the circular oceanarium in 1966. This fresh water habitat would see several uses over the years with displays of fresh water dolphins, manatees, and fresh water fish, then a conversion to salt water for "the shark nursery", a tank for smaller sharks. Eventually in the 1980s this would become "The Wonders of the Spring" showcasing fresh water fish found