You can see the whirlpools from a boat run by Naruto Kanko Kisen (Uzushio Kancho-sen). Local buses run from Tokushima Station and Naruto Station to Naruto Kanko-ko (鳴門観光港) where the boat leaves. (The boat terminal looks different from this old p
Port location: https://goo.gl/maps/7jxi9mDKaWgz8JM77