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Lake Chuzenji & Kegon Falls — Mountain Lake Sanctuary

Published: Jul 22, 2026
Updated: Jul 22, 2026
lakewaterfallmountainautumn foliageonsenscenic drive
Lake Chuzenji & Kegon Falls — Mountain Lake Sanctuary
Lake Chuzenji & Kegon Falls — Mountain Lake Sanctuary 2
Lake Chuzenji & Kegon Falls — Mountain Lake Sanctuary 3

Lake Chuzenji sits at 1,269 meters in a volcanic caldera formed 20,000 years ago when Mount Nantai erupted and lava dammed the valley. The lake is 4 kilometers across, surrounded by forested mountains, and fed by snowmelt from the peaks of Nikko National Park. The water is cold, clear, and intensely blue. The lakeside town of Chuzenjiko has been a mountain resort since the Meiji era, when foreign diplomats and Japanese elite built summer villas to escape Tokyo's heat.

Kegon Falls, one of Japan's three great waterfalls, drains Lake Chuzenji in a single 97-meter plunge into a narrow gorge. The falls are accessed via an elevator (¥570) that descends through solid rock to an observation platform at the base, where spray fills the air and the roar drowns conversation. The combination of alpine lake, mountain views, waterfall, and onsen (the area has several hot spring hotels) makes Chuzenji-Kegon a complete mountain retreat, best experienced outside summer's peak tourist season.

Essential Information

Opening Hours

Kegon Falls elevator: 7:30 AM–6:00 PM (summer) | 8:00 AM–5:00 PM (winter) | Lake boat cruise: 9:00 AM–4:30 PM (April–November)

Closed: Kegon Falls: year-round | Irohazaka road to lake: closed November–April (check annually for exact dates)

Entrance Fee

Kegon Falls elevator: ¥570 adults, ¥310 children | Lake boat cruise: ¥1,500 | Chuzenji Temple: ¥500

Best Season

Late October (peak autumn foliage on Irohazaka + lake) | May–June (snowmelt makes falls most powerful) | May for fresh green on 48 hairpin turns

Visit Duration

Kegon Falls: 30–45 minutes | With lake cruise: 2.5–3 hours | With Chuzenji Temple and hiking: 4–5 hours

Getting There

Access Information

Lake Chuzenji is 40 min by bus from Nikko Station (¥1,200) via the winding Irohazaka Scenic Road (48 hairpin turns). Kegon Falls elevator ¥570. Lake boat cruises ¥1,500. Area accessible April–November (road closed in winter). Best seasons: autumn (late October) and fresh green (May).

Insider Guide

Premium
**Kegon Falls timing:** Visit early morning (8:00–9:00am) when tour groups haven't arrived and mist catches morning light. The falls are dramatic year-round but especially powerful in May–June (snowmelt) and after summer rains (July–August). In winter, the falls partially freeze into blue ice columns, but road access is closed — only visible from distant overlooks. **Lake Chuzenji boat cruise:** The 60-minute circuit cruise (¥1,500) departs from Chuzenjiko pier and circumnavigates the lake, passing mountain views, lakeshore shrines, and the point where Kegon Falls begins. Best in autumn (late October) when the surrounding mountains are ablaze with foliage. **Chuzenji Temple:** On the lake's eastern shore, Chuzenji Temple houses a 6-meter-tall standing Kannon (Buddhist goddess of mercy) carved from a single tree. The temple is quiet, forested, and overlooks the lake — a meditative counterpoint to Toshogu's sensory overload. Entry ¥500. **Hiking:** The Senjogahara Marshland trail (see separate entry) starts 30 minutes by bus northwest of the lake. Alternatively, the Akechidaira Ropeway (10 min by bus from Kegon Falls) ascends to a plateau with 360° mountain and lake views (¥800 round-trip). **Onsen hotels:** Several lakeside hotels offer day-use onsen (¥1,000–1,500) with views over the lake — Nikko Lakeside Hotel and Chuzenji Kanaya Hotel are the best. The water is sulfur-based, milky-white, excellent after hiking. **Irohazaka Scenic Road:** The bus ascent/descent via Irohazaka is an experience itself — 48 numbered hairpin turns climbing 440m elevation through forest. Autumn foliage along the road (late October) rivals the lake itself. If driving, take the downhill 'first Irohazaka' for better views.

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