My DH watched them from our balcony in 8632. He said he could see most of it, but may have had to lean out a bit for some. He said 8632 was perfect because he saw a bit more through the space where the above floors curve for the skin:
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I don't think he had as nice a view as we did. They really do try to shoot off the fireworks to be overhead. While on deck 12, you almost feel like they are right above you, not away from the ship. Although, they are probably further out than they appear.