Hi! A glow cube is an "ice cube" (I don't actually think they are cold) that lights up and flashes in different colors inside your glass. I personally think they are pretty obnoxious, but that's just me...
Dole Whip, on the other hand, is a smooth & chilly, pineappley, wonderfully yummy treat (not as rich as ice cream, but creamier than sorbet...perfection)that you can only get in Adventureland. They are perfect on a hot day (or any day, IMHO)...you have to try one on your next trip!