The smallest Celebrity cruise ship is the super-tiny Celebrity Xploration. Based in the Galapagos, it measures 320 tons, just a tiny fraction of the size of Celebrity Beyond, and it holds just 16 passengers.

The smallest ship in the Celebrity Cruises fleet is the Celebrity Flora, which is a specialized mega-yacht designed specifically for the Galápagos Islands. This vessel is remarkably intimate, with a gross tonnage of just 5,739 tons and a maximum capacity of only 100 guests. Unlike the massive "Edge Class" ships that carry thousands of passengers, the Flora offers a boutique expedition experience, featuring all-suite accommodations and a 1-to-1 crew-to-guest ratio. Because it operates in a protected national park, it features advanced environmental technology, such as a dynamic positioning system to stay in place without dropping anchor. If you are looking for the smallest "traditional" ocean-going ship in the fleet (outside of the expedition class), the title goes to the Millennium-class ships, such as the Celebrity Millennium or Celebrity Infinity, which are roughly 91,000 tons and hold around 2,100 guests—still quite large but significantly more "human-scale" than the newest 140,000-ton giants.