You can hike up the hill from Kevin’s Guest House to Saijoji Daiyuzan Temple. Then from there you can hike to Mt. Miyojingatake.
Pick up a copy of Hiking map: Yama-to-Kōgen Map #29 “Hakone”
Note, though, this map only shows the route from Daiyuzan up to Myōjingatake. The route down is not shown on this map, so follow the signs. You can also pick up a good hiking map of the Minami Ashigara area at a tourist office or at the Only You Hot Springs.
Web sites: Daiyuzan Saijōji (大雄山最乗寺):