Getting There & Away
Your own wheels are useful here.
The JR Mugi line runs from Tokushima city down the coast as far as Kaifu, just short of the prefectural border with Kōchi. From Kaifu, the private Asa Kaigan railway runs two stops further to Kannoura (for Shirahama), just across the border. Seven buses a day run from Kannoura to Muroto-misaki (¥1520, 40 minutes) via Ikumi. Buses then continue on as far as Nahari and Aki (安芸; ¥2880, 2½ hours), where you can transfer to a train to Kōchi.
Coming the other way, trains run from Kōchi as far as Nahari – but you'll have to rely on buses to get you around the cape and up to Kannoura. The planned rail route around the cape never eventuated.