Naejangsan Autumn: Korea's Maple Tunnel & Temple Walk Guide

Published 2026-10-11 · Off Map Korea

There is an old Korean saying: Chunbaegyang chunaejang — Baegyangsa Temple in spring, Naejangsan in autumn. The name Naejangsan itself means "a mountain containing countless hidden treasures," and for a few weeks each autumn, that name feels less like poetry and more like a description. Naejangsan, in Jeollabuk-do, is where Korea's autumn foliage conversation begins. Unlike the high granite ranges of the north, its fame rests on something lower and quieter: a canopy of maple trees, a temple founded in the 7th century, and a walking route that asks almost nothing of your legs.

When the color arrives in 2026

The Korea Forest Service published its 2026 peak foliage map on September 22, 2026. Its forecast puts Naejangsan's peak on November 4 — but read the fine print. The Forest Service calls it "peak" when about 50% of the trees it watches have turned. A second forecast, using the weather-service definition of peak (about 80% of a mountain turned), lands roughly a week later, around November 11. So treat the good week as roughly November 1 to 11: color building before the 4th, fullest just after.

The KMA's rule of thumb is that peak comes about three weeks after first color, and the exact day shifts with temperature and wind. A photo posted the week you travel beats any September forecast. If you can choose your day, choose a weekday morning. The peak weekends draw some of the heaviest autumn crowds in the country, and the road into the park is narrow.

The classic walk, end to end

Naejangsan's best experience is not a summit. It is a sequence: a nature trail, a floating pavilion, a tunnel of maples, and a temple courtyard. All of it is reachable on foot from the park's valley floor.

Uhwajeong Pavilion and the nature trail

Start at Geumseongyo Bridge, where the 2.6 km Nature Observation Trail begins. It is an easy walk — about 40 minutes — through forest that changes with the season, ending at Uhwajeong Pavilion. The pavilion stands in the middle of a small lake, its reflection doubling the scene on still mornings. The current structure was rebuilt in 2016 in traditional Korean style with an octagonal roof, replacing a concrete predecessor. Local legend says the pavilion once grew wings and rose into the heavens; what is certain is that the red branches leaning over the water make it the park's most photographed autumn scene.

The 108 Danpung Tunnel

Continue past the visitor information center to Iljumun Gate, the single-column gate that marks the entrance to the temple precinct. The path behind it is the 108 Danpung Tunnel — danpung meaning autumn foliage — named for the roughly 108 fall-leaf trees whose branches meet overhead to form a living tunnel. It is the walk Naejangsan is famous for: maples closing in on both sides, the ground covered in fallen leaves. The trail leads first to Naejangsa Temple, then continues toward the 3.9 km Wonjeokgol nature observation trail deeper in the valley.

Naejangsa Temple

Naejangsa is believed to have been founded in 636, during the Baekje Kingdom. It was burned down during the Korean War and rebuilt in the years since. Set against a screen of peaks, the temple grounds sit at their most vivid in autumn — red hillsides above gray rooflines, the sound of the wooden moktak handbell from the prayer hall. Give it unhurried time. The courtyard repays slowness the way the tunnel does not: here the color frames something still, not something you walk through.

If you want to go higher

A cable car operates near the park's information center, lifting visitors to an observation area above the forest — useful when you want the layered view of the whole valley in color rather than the walk beneath it. Serious hikers can link the park's ridgeline peaks on longer courses; those routes are steeper and narrower, and they start from the same valley base. For most autumn visitors, the valley sequence above is the right distance.

Getting there and practical notes

• From Seoul: KTX from Yongsan Station to Jeongeup, about 1.5 to 2 hours, then a local city bus (around 40 minutes) to the park gate.
• Entry: Park entry is free. The old temple cultural-property viewing fee — once collected at Naejangsan like other temple-adjacent parks — was abolished nationwide in May 2023.
• Peak-season logistics: During the foliage weeks, the park has in past seasons restricted private vehicles on the busiest stretches and run free shuttle buses for the final approach. Check the park's latest notice before you go; arrangements vary by year.
• Timing: Arrive by mid-morning at the latest. The first week of November is the busiest period of the year here.
• What to bring: Layers for cool valley mornings, shoes with grip for leaf-covered paths, and cash — the restaurants and stalls along the approach road are often cash-preferred.

Walk it with local support

Planning an autumn trip to Naejangsan? Off Map Korea designs walking routes around your dates — lodging booked by phone in Korean, transport checked against current timetables, and a trip sheet in your pocket with everything you need.

Plan your autumn walk →

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Sources: Korea Forest Service 2026 peak foliage forecast map (Sept 22, 2026); Korea.net (official); VISITKOREA; Korea National Park Service visitor information. Forecast dates shift with weather — confirm the current foliage status before traveling.