I’m considering a trip across Awaji Island and on to Shikoku. The Naruto Strait between these two islands is well known for the whirlpools that occur when the tide is right. As the Oonaruto Bridge (大鳴門橋) (that crosses the strait) itself is less than 1 km across, it seems most convenient to walk across for the best view of the whirlpools underneath.
However, while Wikipedia mentions being able to walk onto the bridge from its southern end (to see the whirlpools), I have not been able to find out if the walkway crosses the bridge or if it ends halfway. So: Is it possible to cross the bridge on foot or do I need to resort to a bus or taxi?