Heaven Lake (Tianchi)
The crater lake at 2,189 m, 13 km around and up to 373 m deep — the deepest lake in China. On a clear morning the water reads as a flat sheet of jade and the North Korean shore is visible on the far side.
Changbai Mountain · Jilin
Changbai Mountain Tours & Travel Guide 2026 | Heaven Lake, Jilin | JoyoTour
Visit Changbai Mountain and Heaven Lake on a private Jilin tour: the 2,189 m border crater, hot springs, waterfalls and the west slope. Two to three days.
The short version
Changbai Mountain is a 2,744 m volcanic massif on the China–North Korea border, and its crater lake, Heaven Lake (Tianchi), lies at 2,189 m — the highest and deepest crater lake in China. It is a scenic area rather than a city: you base in Erdaobaihe town and enter by the north or west slope, and two days is the sensible minimum. The dependable season is late June to early October; outside it, snow and cloud regularly close the summit.
- A mountain scenic area on the North Korean border, not a city — gateway towns are Erdaobaihe (north) and Songjianghe (west).
- Heaven Lake sits at 2,189 m and clears on roughly one morning in three; go up early before the cloud builds.
- Three slopes with separate tickets: the north is the fullest, the west gives the widest view of the lake, the south is quietest.
- The Baihe–Changbaishan high-speed rail now reaches Erdaobaihe; Changbaishan (NBS) and Yanji (YNJ) are the airports.
- Late June to early October is the season; late September is the best week for autumn colour.
The place itself
What Changbai Mountain is actually like
Changbai Mountain is the roof of northeast China: a dormant volcano whose last major eruption, in 1903, left a crater that filled with water to become Heaven Lake. The lake straddles the border with North Korea, so the far bank you are looking at is another country, and the whole massif is the source of three of the region's great rivers — the Songhua, the Yalu and the Tumen.
It is a scenic area, not a town. Nearly everyone sleeps in Erdaobaihe at the foot of the north slope, 30–40 minutes from the ticket gate, and walks up through a sequence of spots: the towering waterfall, the steam of the Julong hot springs, and finally the rim of the crater. The west slope approaches from Songjianghe and climbs a single long flight of steps straight to the lake edge; the south slope sees the fewest visitors.
The catch is the weather. The summit sits above the cloud line, which means mornings are often clear and afternoons are not — the same view that produced a photograph at 8am can be solid white by 11am. Go up early, take the season seriously, and treat a clear sight of Heaven Lake as a reward rather than a guarantee.
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What not to miss — Changbai Mountain
Changbai Waterfall
A 68 m fall where the lake overflows its rim and drops into the Erdao Baihe river — the tallest volcanic waterfall in China, reached from the north slope by a short boardwalk.
Julong Hot Springs
A field of steaming vents beside the waterfall where the water comes out at 60–82°C. Buy eggs boiled in the spring water and soak your feet at the pools further down the slope.
Green Deep Pool and the underground forest
On the north slope, Green Deep Pool sits under the waterfall with a colour to match its name. Down-valley, the underground forest is a stand of ancient trees growing in a sunken volcanic basin.
Jinjiang Grand Canyon
On the west slope, a marker-pen canyon of grey and ochre volcanic rock cut into columns and towers. It pairs naturally with the west-slope lake climb on the same day.
Alpine garden and the Wanda ski resort
In summer the west slope's high meadow flowers from late June into July; in winter the Changbaishan Wanda International Resort, 30 minutes from Songjianghe, becomes one of China's largest ski areas.
Getting there and away
Fly into Changbaishan Airport (NBS), 15 km from the north-slope gate and about 80 km from the west slope, or Yanji Chaoyangchuan (YNJ), which has more flights and sits two hours away by road. The Baihe–Changbaishan high-speed rail now links Erdaobaihe directly to Changchun and Shenyang, which is the most reliable way in during winter weather.
Inside the area, private cars and taxis are barred from the summit — everyone transfers to official shuttle buses at the slope entrances, then to a smaller vehicle or on foot for the final climb. That means your day is built around the shuttle timetables, so a driver-guide who knows the queues and the ticket windows saves real time. Between the slopes and the gateway towns, plan on a car.
Best time to visit — Changbai Mountain
| Month | Weather | Crowds | Verdict |
|---|---|---|---|
| January | 4°C / -4°C · dry, cold | Quiet | Avoid |
| February | 6°C / -1°C · dry, cold | Very busy | Avoid |
| March | 14°C / 5°C · dry, cold | Moderate | Good |
| April | 21°C / 12°C · clear and mild | Moderate | Best |
| May | 27°C / 18°C · clear and mild | Busy | Best |
| June | 31°C / 23°C · hot, humid | Moderate | OK |
| July | 32°C / 25°C · hot, humid | Busy | OK |
| August | 30°C / 24°C · hot, humid | Busy | OK |
| September | 26°C / 19°C · clear and mild | Moderate | Best |
| October | 20°C / 12°C · clear and mild | Very busy | Best |
| November | 12°C / 4°C · dry, cold | Quiet | Good |
| December | 5°C / -2°C · dry, cold | Quiet | Good |
How many days do you need?
Two days is the working minimum: day one for the north slope — waterfall, hot springs and the lake rim — and day two for the west slope or a soak at a hot-spring resort on the way back. Three days lets you add the Jinjiang Grand Canyon, the underground forest and time to wait out a cloudy morning for a clear lake. In winter, add a day or two if you want to ski at Wanda.
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Frequently asked questions
What is Changbai Mountain and where is it?
It is a dormant volcano on the border between Jilin province and North Korea, in the far southeast of northeast China. Its crater holds Heaven Lake, China's highest and deepest crater lake at 2,189 m, and its summit is 2,744 m. It is a scenic area, not a city: visitors base in Erdaobaihe town and enter by the north or west slope.
Which slope should I choose — north, west or south?
The north slope is the classic and the most complete: the waterfall, the hot springs, the underground forest and a bus-and-steps climb to the lake, all from Erdaobaihe. The west slope climbs one long stair to the lake edge and has the widest view plus the alpine garden and the Grand Canyon. The south slope is the least developed and quietest. First-timers with one day should do the north slope.
How do I get to Changbai Mountain?
Fly into Changbaishan Airport (NBS) for the north slope, or Yanji (YNJ) if you want more flight choice and do not mind a two-hour drive. The Baihe–Changbaishan high-speed rail also reaches Erdaobaihe from Changchun and Shenyang. From the gateway towns you take a private car to the slope gate, then official shuttle buses up the mountain.
When is the best time to visit Heaven Lake?
Late June to early October. July and August are the warmest and the alpine flowers peak then, while late September gives the best autumn colour. The lake is above the cloud line, so the morning is far more reliable than the afternoon for a clear view — aim to reach the rim before 10am. From November to May the peak is usually snowbound and the roads can close at short notice.
Can I see North Korea from the summit?
Yes — the far shore of Heaven Lake is North Korea, and on a clear day you can see across the crater. Photography of the border zone is sensitive, so stay on the marked paths, do not point long lenses at the far side, and follow whatever the on-site staff tell you. There is no crossing and no border tour.
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