Ta Xua (Tà Xùa) is a Hmong mountain commune in Son La province, about 200 km west of Hanoi, where people go for one thing: to stand above a sea of clouds at sunrise. The houses sit at roughly 1,500–1,800 m, high enough that on a good morning the valleys below fill with white and only the ridgelines show. On a bad morning you see fog and nothing else, and that happens often enough that you should plan for it. Where: Ta Xua commune, Son La province (formerly Bac Yen district), about 200 km west of HanoiOpening hours: open landscape; the grassland has a ticket gate; in visitors' videos cloud seas show from first light and are often gone by 7–10 amTicket: Dinosaur Spine free (parking 10,000–20,000 VND where charged); grassland about 30,000 VND; the lone tree sometimes free, sometimes 10,000–25,000 VND in visitors' videosBest time: roughly October to April for cloud seas, on weekdays, a sunny day after rainGetting there: night limousine from Hanoi, 300,000–400,000 VND one way; about 5–6 hours by road, night buses reach Bac Yen around 4–5 am; the last 13 km is a steep climb from Bac YenInformation checked: November 2026 Older guides, and the old tag page on this site, call it the Ta Xua Nature Reserve. The forest here is classified as special-use forest, and the commune is preparing a dossier to have it recognised as a reserve (VietnamPlus, August 2026). Since 1 July 2025 the commune also covers the former Hang Dong and Lang Cheu communes, which is why the Dinosaur Spine, once “in Hang Dong”, is now inside Ta Xua. When is the best time to see the sea of clouds in Ta Xua? Roughly October to April. VnExpress gives October to April as the cloud season; the national tourism site, vietnam.travel, narrows the best of it to January to March. Locals quoted in visitors’ videos put it at October or November through February or March. Cloud seas still form in summer, just less often, and vloggers caught them in most months they filmed, summer included. Time of day matters more than the month. Cloud hunters are up at 5–6 am, and on camera the cloud sea is usually breaking up or turning to fog by somewhere between 7 and 10 am. Around the Dinosaur Spine thick cloud can hang on until about 10 am. In the videos, views open and close within minutes, so if the first look is grey, wait a quarter of an hour before giving up. Visitors also filmed afternoon and sunset clouds from Dinh Gio (Windy Peak), where cafés line the road facing the valley. VnExpress and several visitors’ videos agree that a sunny day a few days after rain gives the best chance; VnExpress adds that cold nights followed by warm, sunny days are a good sign. Even so, foggy mornings with no cloud sea are among the most common things visitors film. If you can, stay two nights and get two sunrises. Cloud filling the valleys around Ta Xua at blue hour. Photo: VANNGO Ng / Pexels How cold does it get? Cooler than Hanoi, even in summer. In visitors’ videos from July to September, evenings and early mornings are about 17–20 °C and people wear jackets; winter nights drop into single digits. Frost has been reported on the highest peak, Phu Sa Phin (2,865 m, on the Son La–Lao Cai border), in March 2025 and again in November 2025. Visitors’ videos also show harsh midday sun and little shade at the viewpoints, so pack a warm layer and sunscreen. How to get from Hanoi to Ta Xua The road is about 200 km and takes 5–6 hours: west on National Road 32 past Son Tay, then National Road 37 through Phu Yen and Bac Yen, then about 13 km up the mountain on provincial road 112. That last climb is steep, with many hairpins; riders in the videos take 30–40 minutes by motorbike. Some guides quote 240 km; measured on the map, the shortest road is closer to 200. Night bus or limousine The common choice in visitors’ videos is an overnight bus. Departures are around 9–10 pm from the My Dinh area or BigC Thang Long, arriving at Bac Yen around 4–5 am. Operators named by several booking sites on this route include Minh Chau, Hien Huu, Khanh Thinh and Nguyen Hang. Limousine to Ta Xua: about 300,000–400,000 VND one way, around 700,000 VND return. Sleeper bus to Bac Yen: about 250,000–300,000 VND. Big coaches stop in Bac Yen; passengers move to a shuttle van for the climb. A motorbike taxi from Bac Yen up to Ta Xua is about 100,000–150,000 VND. Arriving at 4 am sounds early, and in visitors’ videos homestay check-in is usually around noon to 2 pm. In the same videos, bus companies and homestays usually offer a room to rest in until morning. Ask about this when you book, and check that your ticket is for Bac Yen or Ta Xua, not just for Son La. Driving yourself Motorbikes rent for about 100,000–200,000 VND a day, fuel extra, from homestays or bus companies. Fill up in Bac Yen, since there are few petrol stations on the mountain. VnExpress advises against arriving at night, and visitors’ videos show why: the mountain roads are unlit, and fog can cut visibility to a few metres. If you are not used to steep, narrow roads with drops at the edge, hire a local motorbike taxi or a car with a driver instead. The Dinosaur Spine: what to expect The Dinosaur Spine (Sống lưng khủng long) is a bare, narrow ridge in the Hang Dong area, about 13–15 km and 45 minutes by road from the Ta Xua centre. From the road end, a path of about 1 km runs down the ridge to a tip that vloggers show marked with a national flag. It is narrow, with steep drops on both sides. In the videos, going down is easy and walking back up, often in full sun, is the part people complain about. Entry is free. Local motorbike taxis wait at the road end to carry visitors down the track and back, for about 50,000–100,000 VND per person return; 60,000 is the figure heard most often in the videos. Many vloggers advise against riding your own bike down. Several first-timers in the videos found the ride down on the back of a bike frightening, so decide on the spot whether to ride or walk. Rain changes everything here. Visitors’ videos show the track turning slippery or impassable, drivers fitting chains on their tyres, and people giving up on the spine for the day. After a deadly landslide on road 112 in August 2024, the province advised limiting visits to Ta Xua during rain and floods. If it has been raining, treat the spine as a place to see from the road end. On fine days the spine is not quiet: in visitors’ videos, Hmong musicians play the khen (pan pipe) for photos and tips, and stalls sell instant noodles, cơm lam (rice cooked in bamboo) and grilled meat. One more mix-up to avoid: hikers on the summit trek from Ban Cong, on the Lao Cai side, cross a different ridge that is also called a dinosaur spine. The Dinosaur Spine on a clear day. Photo: NKSTTSSHNVN / Wikimedia Commons, CC BY-SA 4.0 Other things to see in Ta Xua The lone tree and Dinh Gio The lone tree (cây cô đơn) is a wild táo mèo tree on Dinh Gio, at the junction of the Xim Vang and Hang Dong roads, a little over 1 km from the centre. Visitors’ videos show it is really two trees, overlooking a reservoir, and that it gets queues for photos, so go early. Sunset there is around 5:30 pm in winter, later in summer. Many vloggers mention a fee of 10,000–25,000 VND, though some sources say it is free. The Google Maps pin labelled with its name sits about 16 km away from where the newspapers place it, so navigate to Dinh Gio instead. Dolphin Rock and the grassland Dolphin Rock (Mỏm Cá Heo), two offset boulders that make a popular photo stop, is on the same road as the lone tree. The Ta Xua grassland (thảo nguyên), about 10 km from the centre, has a gate charging about 30,000 VND, and the videos show a car park, cafés and toilets there. Ancient Shan tuyet tea Ta Xua has about 300 ha of Shan tuyet tea, about 40 ha of it ancient trees. Nhan Dan newspaper counted nearly 3,000 trees aged 100–300 years, most of them in Be village, and in 2019 a grove of more than 200 of them was recognised as Vietnam Heritage Trees. Vloggers find Ta Xua tea sold at stalls along the roads. Xim Vang terraces The rice terraces of Xim Vang are about 17 km from Dinh Gio. Visitors’ videos say they look best around September, before the harvest, and that the last lane down is steep enough to take a motorbike taxi. Where to stay and what it costs Homestays fill the commune centre, and visitors’ videos keep pointing out how much new building there is. Typical prices: Dorm bed: about 100,000–150,000 VND a night. Private room in a homestay: about 250,000–750,000 VND. Glass bungalow with a valley view: about 700,000–1,500,000 VND, more at weekends and in cloud season. In visitors’ videos, weekends are busy and weekdays quiet, and public holidays such as Tet, 30 April and 2 September are packed. Book ahead for Friday and Saturday nights. A few visitors ran into fake homestay booking pages, so call the homestay to confirm before you pay a deposit. Some visitors stay near the spine to skip the 45-minute drive before sunrise. Food and money Roadside grills on Dinh Gio and in the centre sell cơm lam (about 5,000–20,000 VND a tube in visitors’ videos), sausages, and smoked buffalo or pork dipped in chẩm chéo, a Northwest chilli and herb salt. Black-chicken hotpot is the dinner vloggers most often call the local speciality. A meal at a local eatery is about 100,000–120,000 VND a head, and a coffee with a cloud view 30,000–60,000 VND. Bring cash: in the videos, almost nobody takes cards. Is Ta Xua worth it? Yes, if you can give it two nights on weekdays between October and April, and you are happy with the chance of fog. It is a long way for one night: the bus gets in before dawn, you may wait until noon for a room, and one grey morning can be the whole trip. If the forecast is wet, wait. The roads and the spine are at their worst in rain, and the clouds tend to come on the sunny days after it. If you would rather someone else handled the night bus and the mountain roads, our 5-day Northwest Adventure tour includes Ta Xua. For a gentler valley closer to Hanoi, see Mai Chau Valley. Mysterious Vietnam Northwest Adventure 5 days 4 nights Start from: US$500 /person FAQ When is the best month to visit Ta Xua? Roughly October to April is cloud season, and the national tourism site rates January to March best. Cloud seas also form in summer, less often. Go on weekdays, and aim for a sunny day a few days after rain. How do I get from Hanoi to Ta Xua? Take a night limousine or sleeper bus from the My Dinh area or BigC Thang Long, about 300,000–400,000 VND one way by limousine; the road is 5–6 hours and night buses reach Bac Yen around 4–5 am. Big coaches stop in Bac Yen, where a shuttle or motorbike taxi covers the last 13 km uphill. Is the Dinosaur Spine dangerous? The path is about 1 km long and narrow, with steep drops on both sides. On dry days most visitors walk it or ride down with a local motorbike taxi. In rain the track turns slippery, and after a deadly landslide in August 2024 the province advised limiting visits during rain and floods, so skip it then. How many days do I need in Ta Xua? Two nights. Clouds are never guaranteed, and a second sunrise gives you another chance. One night after an overnight bus leaves you a single morning. Is Ta Xua a nature reserve? Not yet officially. The forest is classified as special-use forest, and the commune is preparing a dossier to have it recognised as a reserve. Older guides call it the Ta Xua Nature Reserve. Sources: VnExpress travel guide to Ta Xua (updated June 2026); vietnam.travel, Vietnam National Authority of Tourism; Thanh Tra on the merged commune (2025); VietnamPlus on Ta Xua tourism and the forest (2026); VOH on the August 2024 landslide and advisory; Tuoi Tre News on March 2025 frost; VOV on November 2025 frost; Nhan Dan on Ta Xua’s ancient tea (2023); VietnamPlus on the Heritage Tree title; bus fares and pickup points from travelbui and vexere (November 2026); homestay and food prices from mia.vn and travelbui; Bao Lao Cai on Phu Sa Phin and the second ridge (2025); distances measured on OpenStreetMap; visitor observations from about 50 YouTube channels (2023–2026), counted only where three or more channels agree. Banner photo: NKSTTSSHNVN / Wikimedia Commons, CC BY-SA 4.0, cropped. Share:
