Haizi Mountain Sister Lakes: G318’s Turquoise Gem near Batang

The Haizi Mountain Sister Lakes (海子山姊妹湖) are a pair of vividly colored high-altitude lakes sitting directly next to National Highway 318 (G318), the famous Sichuan-Tibet Highway. Located on the border between Litang County and Batang County in the Garzê Tibetan Autonomous Prefecture of Sichuan Province, these twin lakes are a signature landmark for road trippers crossing the Haizi Mountain (Haizishan) pass. Unlike many highland attractions that require a long hike, the Sister Lakes are visible from a paved viewing platform just off the highway, making them one of the most accessible major sights on the route to Tibet.

This guide provides practical, fact-based information for planning a stop at the Haizi Mountain Sister Lakes. It covers location, altitude considerations, best times to visit, what to expect from the landscape, photography advice, and how the site fits into a broader G318 itinerary.

Location and How to Access the Sister Lakes

The Sister Lakes sit at the top of the Haizi Mountain pass, which separates the Litang and Batang regions. The viewing area is directly on G318 about 80 kilometers (50 miles) west of Litang city and roughly 100 kilometers (62 miles) east of Batang county town. The highway here is paved but winding, with a steady climb to the pass.

• Driving from Litang: Approximately 1.5 to 2 hours, depending on traffic and road conditions.
• Driving from Batang: Approximately 2 to 2.5 hours, with a long ascent from the Jinsha River valley.
• Public transport: No direct bus stops at the lakes; most visitors arrive by private vehicle, tour van, or as part of a G318 overland tour. Hitching is possible but not recommended at high altitude.

The parking area is on the eastbound side of the highway, with a short walk (under 100 meters) to the main viewing platform. There is no entrance gate or ticket office. The site is open at all hours, although visiting after dark is inadvisable due to altitude and road safety.

Altitude and Acclimatization

The structured data from the attraction management lists the altitude at 4,480 meters (14,698 feet). However, other sources—including the official reserve documentation and most travel guides—place the actual elevation of the lakes at approximately 4,680 to 4,685 meters. The discrepancy likely comes from different measurement points (road level vs.

lake surface). In either case, this is among the highest points on G318 that a casual traveler will stand on.

Important: This altitude is high enough to cause acute mountain sickness (AMS) even in people who have been on the plateau for days. Typical symptoms include headache, nausea, dizziness, and shortness of breath. Anyone stopping at the Sister Lakes should:

• Move slowly during the stop (no jogging or jumping for photos).
• Stay hydrated (drink water, avoid alcohol).
• Have portable oxygen canisters available if prone to altitude issues.
• Descend to a lower elevation (e.g., Batang at 2,580m) the same day if symptoms worsen.

Because the viewing platform requires only a few steps from the car, the risk of exertion-related AMS is low, but the thin air itself can cause sudden headaches. Spend no more than 20–40 minutes at the platform if you are not fully acclimatized.

The Landscape: Twin Lakes and Ancient Ice Cap

The two lakes sit side by side in a shallow basin, separated by a narrow strip of land but connected by a small channel. Their colors differ because of depth, glacial sediment suspension, and light angle: one appears deep blue, the other teal-green. The surrounding terrain is a stark rocky plateau dotted with hundreds of other smaller lakes (haizi means “lake” in the local dialect) and scattered granite boulders left by the retreat of an ancient ice cap.

The Haizi Mountain area hosts the largest and best-preserved ancient ice cap relics on the Qinghai-Tibet Plateau. The landscape resembles a high-altitude desert littered with glacial moraines, erratics, and polished bedrock. For geology enthusiasts, the site offers a rare chance to see glacial landforms without needing to hike into remote valleys.

The Genyen Massif View

On clear days, the snow-capped peak of Genyen Mountain (also spelled Ge Nian or Genyen) dominates the horizon to the south. At 6,204 meters (20,354 feet), it is the highest mountain in the Shaluli Range and a sacred peak in Tibetan Buddhism.

The Sister Lakes are often described as offering a perfect reflection of Genyen’s summit, especially in the early morning when the wind is calm. However, the reflection is weather-dependent; afternoon winds usually ripple the surface.

Best Seasons and Weather Conditions

The best months to visit the Sister Lakes are June through October.

• June to August: Summer brings moderate temperatures (5–15°C / 41–59°F at the pass). Wildflowers bloom in the lower areas, though the lake shores are mostly bare rock. Afternoon thunderstorms are common; morning visits are best.
• September to October: Autumn is the most photogenic period. The air is clear, visibility is high, and the lakes reflect the sky vividly. Temperatures drop near freezing at night. Snow may appear by late October.
• November to April: Heavy snow and ice can close the G318 pass temporarily. Road maintenance is irregular. The lakes freeze over, and the viewing platform can be icy. Only experienced high-altitude winter drivers with snow chains should attempt this route.
• May: Transition month. The road is usually open, but snow may linger. Landscapes appear grey before greenery returns.

During summer and autumn, expect daytime temperatures of 10–20°C (50–68°F) at the pass but with strong winds. Layered clothing and a windproof jacket are essential.

Photography Tips

The Sister Lakes are one of the most photographed spots on the Sichuan-Tibet Highway. To capture the best image:

• Time of day: Early morning (7:00–9:00 AM) offers calm water for reflections and soft light on the mountains. Midday sun creates glare and flat colors. Late afternoon shadows add drama, but wind often increases.
• Lens choice: A wide-angle lens (16–24mm full-frame equivalent) fits both lakes into the frame. A telephoto lens (70–200mm) can compress the perspective of the highway leading toward the peaks.
• Composition: Include the winding G318 road in the foreground to create leading lines toward the lakes. The viewing platform itself can serve as a foreground element.
• Filters: A polarizing filter reduces glare and deepens the blue tones. A graduated neutral density (GND) filter helps balance the bright sky with the darker foreground.
• Drones: The area may be within a nature reserve; drone use is likely restricted without a permit. Check local regulations before launching. Do not assume drone flying is allowed.

Why Stop at the Sister Lakes

Who Should Visit

• Road trippers on G318: The lakes are a natural break point roughly midway between Litang and Batang. The stop takes only 20–40 minutes, making it efficient for long drives.
• Photography enthusiasts: The composition of twin lakes, snow peaks, and the highway is near perfect. Even a smartphone can deliver impressive results.
• Geology and glacial landform enthusiasts: The ancient ice cap relics are accessible without hiking.
• First-time high-altitude travelers: Because the stop is short and low-exertion, it provides a taste of extreme altitude without the commitment of a trek.

Who Should Skip

• Anyone with severe altitude intolerance: If you have experienced AMS at lower altitudes (4,000m), this pass may cause symptoms. Consider skipping if your itinerary allows you to pass through without stopping.
• Travelers on a tight schedule during winter: Road closures and ice hazards make the pass unpredictable. Wait for a stable weather window.
• Those expecting lush hiking trails: The lakes are mainly a viewpoint stop. There is no developed trail around the lakes, and walking on the rocky shore is difficult at the altitude.

Historical and Cultural Context

The Haizi Mountain pass was part of the ancient Tea Horse Road (Cha Ma Gu Dao), over which caravans transported tea from Sichuan to Tibet and bartered for horses. The pass was one of the most challenging stretches, with thin air, frequent snow, and bandit risk. The lakes provided fresh water and a place to rest.

Local Tibetan legend says the two lakes are the incarnations of two fairy sisters sent by the goddess of Genyen Holy Mountain to protect travelers. The fairies transformed into water to ensure caravans would never thirst. Even today, some pilgrims on the kora (circumambulation) of Genyen Mountain stop to make offerings at the lakes.

This cultural layer adds depth to the purely scenic attraction. Travelers who respect the site’s sacred nature should avoid making loud noises, littering, or climbing on the rocks near the lakes.

Safety and Practical Advice

Because the Sister Lakes are a roadside stop, safety concerns are minimal compared to remote treks. Nevertheless:

• Road safety: G318 is a busy two-lane highway with large trucks. Park only in the designated area. Do not walk on the road for photos.
• Altitude: As noted, the altitude can cause sudden headaches or dizziness. Keep a first-aid kit with acetazolamide (Diamox) if prescribed by your doctor. Descend immediately if symptoms worsen.
• Weather: Conditions change rapidly. A clear sky can turn to hail in 15 minutes. Bring a rain shell and warm layer even in summer.
• Food and water: No food stalls or shops at the pass. Carry snacks and at least 1 liter of water per person.
• Restrooms: The parking area usually has a basic public toilet (often squat style, no toilet paper). Bring hand sanitizer and your own paper.

Where to Stay

Most travelers overnight in either Litang (elevation 4,014m) or Batang (2,580m). Batang is a better choice for those who want to sleep at a lower elevation after visiting the pass. Litang is the highest city in China and can cause AMS in itself. If you have just arrived on the plateau, consider skipping the Sister Lakes stop until you have spent at least one night below 3,000m.

There are no lodges or guesthouses at the Haizi Mountain pass itself.

Sample Itinerary Integration

The Sister Lakes are usually visited as part of a multi-day G318 journey. A common route:

• Day 1: Chengdu to Kangding (2,560m)
• Day 2: Kangding to Litang (4,014m) via Zheduo Pass
• Day 3: Litang to Batang (2,580m) – including Sister Lakes stop

Allow 4–5 hours driving from Litang to Batang with the stop. The highway offers continuous scenic views of grasslands, yaks, and prayer flags.

Frequently Asked Questions

Where are the Haizi Mountain Sister Lakes located?

They are situated on the Haizi Mountain (Haizishan) pass, directly beside National Highway 318 (G318), on the boundary between Litang and Batang counties in the Garzê Tibetan Autonomous Prefecture, Sichuan Province, China.

Is there an entrance fee?

No. The viewing platform and parking area are free to use. There is no ticket office. The site is open 24 hours a day.

What is the altitude of the lakes?

The altitude at the viewing platform is approximately 4,480 meters (14,698 feet) according to some sources, though the actual lake surface is around 4,680 meters (15,354 feet). Either figure puts the site above 4,400 meters, so altitude precautions apply.

Do I need to hike to see the lakes?

No significant hiking is required. The main panoramic view is from the viewing platform, which is less than 100 meters from the parking area. You can walk down a short, informal path toward the lakeshore, but the terrain is rocky and uneven.

What is the best time to visit?

May to October is the most reliable period. June through September offers stable weather and (in June–July) wildflowers. September to October provides the clearest air and best photography conditions. Winter travel (November to March) is risky due to snow and ice on the road.

What should I bring?

Essentials include: warm layered clothing, windproof jacket, sunscreen, sunglasses, water, snacks, basic first-aid kit (including altitude sickness medication), portable oxygen if you are sensitive, and a camera. No shops exist at the site.

Can I camp near the lakes?

Camping is not officially permitted within the Haizi Mountain Nature Reserve. The rocky terrain and extreme altitude make it unsafe. Plan to stay in Litang or Batang instead.

Are drones allowed?

There is no confirmed policy from official sources. Because the area is part of a nature reserve and close to a highway, drone use may be restricted. Contact the Garzê tourism bureau before flying.

Is the Sister Lakes a good spot for sunrise or sunset?

Yes. Sunrise lights up the Genyen massif; sunset casts warm light on the lakes. However, note that the pass is windy at all times, and late afternoon wind often ruins reflections. Arriving at dawn (around 7:00 AM in summer) is recommended.

Summary

The Haizi Mountain Sister Lakes deliver a high-impact scenic stop with minimal effort. The twin turquoise and sapphire lakes, set against a backdrop of glacial boulders and distant snow peaks, create a composition that has become emblematic of the G318 experience.

For travelers already driving this route, the stop is a logical and rewarding pause. Just prepare for the altitude, arrive early for the best light, and respect the site’s natural and cultural significance.

Whether you are a photographer chasing the perfect reflection or a road tripper eager to mark another milestone on the way to Tibet, the Sister Lakes are a landmark worth your time.