Follow the road south, it'll take you past ul'dah too. Stop at each camp on the way and activate the aethryte so you can tele there. Keep following the road. Don't go off it much if at all especially once you pass camp horizon as the road goes underground to a ferry. Take the ferry and you'll arrive in limsa. Very long run but you can teleport to any aethryte you've been to before and it's useful right now because of the no airships thing. Avoid ants, they aggro, I don't know about crabs, any humanoids aggro, sheep are cool, so are monkeys, dodos are fine too. Cactaurs don't aggro either.