User blog comment:Master Sima Yi/Assassinews 10-07-'13 — Assassin's Creed IV: Black Flag pirate gameplay naval exploration/@comment-4975789-20130710231057/@comment-4975789-20130711200510

Much better than the "slow-travel to unlock fast-travel" thing they had going on with the Underground in AC3, at least. (Don't get me wrong, I loved the Underground, just not as a means to unlock fast travel points)