There's everybody pushing the raft into the water, and everybody waving and yelling and clapping and cheering. And there's Vincent, Walt's Friggin' Gift to Shannon, barking and straining at his leash, and he breaks away from Shannon and dashes off into the surf after the raft. Walt starts yelling at him to go back, but Vincent swims and barks and Walt waves him back. And finally Vincent turns around and heads back to shore, which I don't entirely buy, but that's fine. And the music wasn't that ominous or anything, but given that sharks patrol these waters, sharks patrol these waters, my heart was in my throat the whole time, and I had promised that every episode from now on would be given a grade of F if anything had happened to Vincent, but fortunately that didn't happen. He swims back to Shannon, who might want to hold onto the damn leash this time.
The rafters (we need a nickname for this thing) hoist the mainsail, which...has a hole in it? Okay, I'm no boatsman, but I think I would have known to do something about that. But everyone cheers anyway. And Mercutio and Sawyer shake hands, and Mercutio hugs his son, and Walt says, "We did it!" and Jin and Sun throw smouldering looks at each other across the water.
And the last shot is of the black smoke above the trees. Because the "others" are supposedly on their way still. They better get here soon; the season finale's next week.