If you miss the "All Aboard" time at Castaway Cay (Disney’s private island in the Bahamas), the ship will eventually depart without you, as it must stay on a strict schedule. However, because Castaway Cay is a private island operated by Disney, you are not "stranded" in the traditional sense. Disney staff live on the island year-round, so you would be cared for by the Island Command team. They will coordinate with the ship’s Port Agent to arrange transportation—usually via a private boat or a small plane to Great Abaco or Nassau—where you can then fly to the ship's next port or back home. You are responsible for all rejoining costs, which can easily exceed $1,000 per person. To avoid this, always keep your watch on "Ship Time" and aim to be back on the pier at least 60 minutes before the scheduled departure in 2026.