The vessel, set to become the line’s largest ship, returned to the Chantiers de l’ Atlantique shipyard in Saint Nazaire following the trials ahead of its debut sailing on 27 April from Southampton.
Beyond’s examinations were overseen by more than 50 crew members, including captain Kate McCue, engineers and nautical experts.
Lisa Lutoff-Perlo, president and chief of Celebrity Cruises said the vessel showed "why there is so much more to her than her looks".
"I can’t tell you how excited I am to have completed this important milestone as it brings us that much closer to welcoming our guests onboard Celebrity Beyond," she added.
Standing at 17 decks high and 21 meters longer than its predecessors Celebrity Edge and Celebrity Apex, Beyond’s design has been "carefully curated with newly imagined spaces" and expanded versions of the brand’s usual onboard offerings.
The vessel will offer The Retreat, an exclusive area for suite guests, two-storey villas with plunge pools, staterooms with infinite balconies, an expanded Rooftop Garden, a multi-terraced Sunset Bar and Daniel Boulud’s Le Voyage restaurant.
Beyond’s debut sailing from Southampton will be a 10-night Western Europe cruise visiting Bordeaux, France; Lisbon, Portugal; and Seville, Malaga, Palma de Mallorca and Barcelona, Spain.
It will then offer a variety of Mediterranean journeys including nine-night Italian Riviera and France itineraries and 10-night Greek Isles itineraries through early October, when the vessel then heads to the Caribbean.
