100% Endorsed. The Spa Terrace is the place to be. If you sit in Horizons, you have to look through the blue glass, and if you take pictures everything will be blue.
Up on the Spa Terrace they have loungers, you can get yourself water, and restrooms are nearby. And the commentary will come over the speakers on the Terrace. Also, if you climb up the steps where the hot tub is, you can see over the top of the glass, and get great pictures.
Go early, grab a spot!