Mount Tokusenjo is a 711-meter-tall mountain in southern Kesennuma, home to over 500,000 azalea bushes. The hike up the mountain is an easy 2.5-hour round trip along a trail lined with radiant wild mountain azaleas (yamatsutsuji). Every spring from mid- to late May, the flowers bloom to paint the whole mountain in vivid reds and magentas—a truly a breathtaking sight to behold. Come spring, details about the status of the blooms is updated online daily.

In addition to being a favorite of flower lovers, Mount Tokusenjo is also home to the first two treehouses built by the Tohoku Treehouse Tourism Association, an organization dedicated to working with local people to build one hundred different treehouses all over Tohoku. Tom’s House (treehouse #000) and Dekita House (treehouse #001) are free to explore, and either one of them would make a nice spot for a picnic lunch.