Welcoming 5,479 guests at double occupancy and 6,687 passengers maximum, Harmony of the Seas is among the largest ... like the Ultimate Abyss (a 10-story slide) and three multistory waterslides.

The Royal Caribbean's 226,963-ton Harmony of the Seas, on late Saturday departed ... Comprised of two swirling slides, it drops nine stories from near the top of the vessel down to one of its ...

The 5,479-passenger Harmony of the Seas benefits from Quantum ... part of the ship overlook its Central Park atrium and a dry slide, “The Ultimate Abyss,” overlooks the aft.