Okitama Tengu-san (not to be confused with Murayama Tengu-yama) is a mountain in Ide Town. Locals say Okitama Tengu-san resembles the mythical Tengu’s nose. Tengu-san is a former Shugendo mountain. As such, it boasts tons of spiritual places to explore. For example, the Jizo-san of child-rearing, a Goma-do hall for fire rituals, an Oku-no-in shrine, and Kaminari Gongen, the avatar of thunder and lightning. Since ancient times the mountain was regarded as the oku-no-in shrine of Futa'ara-yama Furumine Jinja. Unsurprisingly, locals worship here often. Every year on July 23rd there is the annual festival. During the festival, locals set up tea stands and dish out mochi rice cakes and other delicacies.

From the summit of Tengu-san, you can see the Asahi and Ide Renpo. On the mountain there is a Mikkazuki Fudo-son, a statue of Fudomyo'o (statue of Fudomyo'o). There is also a 7 m high waterfall. The water from which is good for healing eye ailments.

Kojirakawa Tengu-san Trail (90 minutes one-way)

Before passing through the two sets of Torii gates right next to the carpark, be sure to pay your respects by bowing twice, clapping twice, then bowing once. First, the trail takes you along a mountain stream for a while. After about 20 minutes, there are parts requiring ladders and rope to navigate. The Mikkazuki Fudoson (statue of Fudomyo'o) and 7 m high waterfall lie in the middle of the mountain, where you get a real sense of the grace of nature.

A little after the trail meets the forest road there is the Goma-do hall for fire rituals. There are benches and a place to gather water here, so it marks a good spot to take a rest. From here, the summit is just a short climb up some steep parts. However, there are many small shrines as well as a lookout along the way. From the summit, you can see the Asahi Renpo to the north, and the Ide Renpo to the south.

Access is via a gravel road. There are bumps in the road, however normal cars should be able to get by just fine. About 11 cars can park in the unpaved car park about 500 m in front of the trailhead. There is also a temporary toilet here. The toilets next to the Torii gates are out of action.