The ascent of Mt. Misen (530m) is the island's finest walk.
You can avoid most of the uphill part of the climb by taking the ropeway (one way/round trip: 1,000JPY/1,800JPY), which leaves you with a 20 minute walk to the summit.
On clear days, you can behold the beautiful scenery of the Seto Inland Sea from both the cable-car station and the summit.
Just beneath the summit is Kiezu-no-Reikado, where a flame has been burning continually since the Buddhist monk Kobo Daishi first lit it over 1,000 years ago.
The entire mountain range has been worshiped for hundreds of years, and so the forests have remained virtually untouched. The view will be worth the 4-hour hike.
90 minutes to the mountain-top on foot from the hotel