Mount Koya, or Koyasan, is one of Japan's most sacred Buddhist sites, home to the headquarters of the Shingon sect. The pilgrimage routes to Koyasan have been traveled by monks, pilgrims, and spiritual seekers for centuries. These paths wind through lush forests, ancient temples, and mountain landscapes, making them perfect for both spiritual and hiking experiences. Here are the most notable pilgrimage routes:

1. Fudozaka Course (不動坂コース)

The Fudozaka Course is one of the oldest and most traditional pilgrimage routes to Koyasan. This path is relatively short but steep, covering around 2 km, making it suitable for those looking for a quick but spiritual ascent. The trail starts from Gokurakubashi Station and takes about 1–1.5 hours to reach Daimon Gate, the grand entrance to Koyasan. Along the way, pilgrims can enjoy stunning views of the surrounding mountains and peaceful natural settings.

Key Highlights:

• Starting Point: Gokurakubashi Station.

• Distance: 2 km.

• Duration: 1–1.5 hours.

• Difficulty: Moderate to steep inclines.

2. Women’s Pilgrimage Course (女人道, Nyonindo)

Historically, women were prohibited from entering Koyasan’s inner sanctum, so they would walk around the perimeter on the Women’s Pilgrimage Route. Today, this 7 km loop is accessible to all and offers a gentle walk through the beautiful forested surroundings of Mount Koya. This course circles around the town and is perfect for a peaceful and reflective hike.

The trail passes through six original Nyonindo (Women’s Hall) sites, offering a glimpse into the area’s history. It also passes significant landmarks such as Okunoin Cemetery and several small shrines.

Key Highlights:

• Starting Point: Daimon Gate or various access points around Koyasan.

• Distance: 7 km loop.

• Duration: 2–3 hours.

• Difficulty: Easy – Ideal for all fitness levels.

• Notes: A great cultural and historical hike, with serene views.

More details on the Women's Pilgrimage Route can be found here.

3. Koya Sanzan Course (高野三山コース)

For a more challenging hike, the Koya Sanzan Course is a thrilling trek that covers three of Koyasan’s highest peaks: Bentengu, Manisan, and Amakusadake. This route is roughly 18 km and can take about 7–9 hours to complete. It offers some of the best views of the surrounding area and is recommended for experienced hikers seeking a full-day adventure.

The path passes through dense forests, rocky ridges, and spiritual landmarks, providing a deep connection to nature and the spiritual energy of Koyasan.

Key Highlights:

• Starting Point: Koyasan or Daimon Gate.

• Distance: 18 km round trip.

• Duration: 7–9 hours.

• Difficulty: Challenging – Best for experienced hikers.

4. Choishi Michi (町石道)

The Choishi Michi is the most famous and historically significant pilgrimage trail to Koyasan, stretching 24 km from Jison-in Temple in the valley below to the heart of Koyasan. Marked by 180 stone pillars, each standing 3 meters tall, this route has been the main pilgrimage path for over 1,200 years.

This trail can take 6–8 hours to complete and is ideal for those seeking a deeper spiritual connection while hiking through beautiful natural surroundings. The trail passes through sacred spots, forests, and quiet mountain villages, culminating at the iconic Daimon Gate at Koyasan’s entrance.

Key Highlights:

• Starting Point: Jison-in Temple, Kudoyama Station.

• Distance: 24 km.

• Duration: 6–8 hours.

• Difficulty: Moderate to difficult, due to length.

• Notes: The route is well-marked with stone pillars.

Trail Map: https://eng-shukubo.net/access/pdf/woman-pilgrims-route.pdf

General Info: https://www.phenomenalglobe.com/koyasan-choishi-michi-pilgrimage-trail/