I disagree, there isn't much "fight" unless you're trying to get on a boat or a bus with everyone else. You just follow the flow of people out of the park (or even hang back and stroll out once most of the crowd has cleared), then hit the path and walk. Most people don't even know the path exists, so even after Fantasmic it's usually pretty deserted. Just go straight out of the MGM exit toward the water, but instead of turning left for the boat dock, follow the path around to the right and you'll see a sidewalk split off toward the water near the charter bus parking. I believe there's a sign that says "Boardwalk" there, too. It's a great walk, especially during the cooler evening, and should only take you 10-15 minutes or so to get to the Swan.