Like other bacterial bioluminescence, milky seas have a steady, even gleam “like the glow-in-the-dark plastic stars you can buy your kids,” according to a 1980 U.S. Navy sighting.

Oasis of the Seas is ranked 17 among Royal Caribbean cruise ships by U.S. News Travel. Check itineraries, photos and ratings from 4261 travelers.

Independence of the Seas is ranked 27 among Royal Caribbean cruise ships by U.S. News Travel. Check itineraries, photos and ratings from 2372 travelers.

Odyssey of the Seas, launched in 2021, is the first of Royal Caribbean's Quantum Ultra Class ships to sail in the U.S. As one of the line's largest cruise ships, ...