Harmony of the Seas completed an approximately seven-week Royal Amplified dry dock at Navantia Cádiz from April 3 through May 21, 2026. The project combined technical maintenance with extensive passenger-area modernization, including a Caribbean-inspired pool deck with The Lime & Coconut and a refreshed adults-only Solarium. New dining and entertainment options included Playmakers Sports Bar & Arcade, El Loco Fresh and Samba Grill. The project also introduced new accommodations including the Ultimate Family Suite, expanded and refreshed hotel areas throughout the ship, and transformed Casino Royale into the largest casino in Royal Caribbean's fleet.