Ships in class: Quantum of the Seas (2014), Anthem of the Seas (2015), Ovation of the Seas (2016), Spectrum of the Seas (2019) and Odyssey of the Seas (2021) Size: 168,666 to 169,379 tons.

The 4,182-passenger Ovation of the Seas is the first Royal Caribbean Quantum Class ship based in Los Angeles — and also the largest ship ever to sail out of that port based on capacity.

Royal Caribbean's Harmony of the Seas features a 10-story Ultimate Abyss slide. (Richard Tribou/Orlando Sentinel) Ovation of the Seas, a Quantum-class ship which entered service in 2016, will ...