Waterworld
The Mariner frees Enola and escapes the ship which sinks. They float at sea for a while and then have one last battle with the Deacon (who survived the blast) before being rescued by Gregor. Gregor understands the map and leads them in the direction of what does, in fact, turn out to be Dryland: Mount Everest. Gregor, Enola, Helen and the others start to rebuild civilization on the island. The Mariner builds a boat and sails away, back to his old life.