From www.wdwinfo.com

Aquatica to open Orlando's tallest water thrill ride
Sep 8, 2013

SeaWorld's Aquatica is advertising "something tall" that will be opening at the park in 2014. Area residents have noticed a height-test balloon being flown over Aquatica. SeaWorld has confirmed that the balloon was up 105 feet in the air and that it was testing sight lines for "the tallest water thrill ride of its type in Orlando." No other details have been released at this time.