
I was there for a while last night, too!
I was impressed... by 6pm, when I showed up, they were letting folks in and the park was (relatively) empty. No trouble finding a beach chair by the wave pool, reasonably short lines (particularly for a holiday!), and pleasantly warm water! It did feel kinda chilly, though, when ya got OUT of the water... so I left around sunset and hit the night shows over at Sea World (which were also quite nice!).
Aquatica is definitely someplace I'll be hitting more frequently in the evening as the summer gets hotter!
=)