In our recent visit to the park this past Saturday, we walked through Flashback's former plaza and noticed what looks like it could've been an old entrance to something. Judging from the stanchion holes left in the ground creating a path-like formation to a fence bordering Hurricane Harbor, this used to be a gateway to either a former park attraction or a Hurricane Harbor entrance of some sort. The fence looks as if it's a permanent establishment, which leads us to think it had something to do before Hurricane Harbor was there, possibly for the Dolphin & Sea Lion Show that once played in a man-made lake in Hurricane Harbor's area before it was built.
An abandoned turnstile station next to the Will Call office inside the park also caught our eye. Rusted, bent, and forgotten, these turnstiles most likely were used at some point for an entrance or 'gateway'. If you notice in the picture below, the fence (or gate) behind them appears to be open-able, but is padlocked shut. Being right next to Ticket Will Call outside the park and a gate that was built to open certainly give way to several questions on what this was used for. Of course, this is never used now, seeing that it has permanent railings on top and the condition of the turnstiles.