Thac Bac β "Silver Waterfall" β sits on the forested slopes of the Tam Dao range in the northern midlands, close to Phu Tho province. It's not the kind of place that ends up on international bucket lists, which is exactly why it works. On weekdays you might share the trail with a handful of local hikers and nobody else.
What it is
Thac Bac is a multi-tiered waterfall fed by streams running off the Tam Dao mountains, dropping roughly 50 meters through mossy granite into a series of pools. The surrounding forest is dense, wet, and genuinely cool β temperatures here run 5-8Β°C lower than Hanoi even in summer. The area has been a low-key weekend escape for northerners since the French colonial period, when Tam Dao town was developed as a hill station. The waterfall itself has no grand historical backstory; it's just been there, doing its thing, while the rest of the mountain got built up with villas and karaoke joints.
The name comes from how the water catches light as it fans across the rock face β more white than silver, honestly, but the Vietnamese name stuck.
Why travelers go
Three reasons, mainly. First, the cool air. If you've spent a week in Hanoi (νλ Έμ΄ / ζ²³ε / γγγ€) during June, your body physically craves altitude. Second, the hike in is short enough to be accessible but long enough to feel like you've left civilization. Third, the pools at the base are swimmable in the right season β cold, clear water surrounded by forest, no entrance queue, no selfie platforms.
It also pairs well with a broader trip through the northern midlands. If you're heading to or from Phu Tho for the Hung Kings Festival or just passing through on the way to somewhere like Sapa, Thac Bac makes a worthwhile half-day stop.
Best time to visit
September through November is ideal. The rainy season has pumped the falls to full volume, the forest is almost aggressively green, and the summer crowds from Hanoi have thinned out. The trail can be slippery, so decent shoes matter.
May through August works too β the falls are strong and swimming is comfortable β but weekends get busy with domestic visitors escaping Hanoi's heat.
December through February is cooler and drier. The waterfall thins to a trickle some years, which can be disappointing if that's your main reason for coming. On the other hand, the misty mountain atmosphere is at its best, and you'll basically have the trail to yourself.
Avoid major Vietnamese holidays, especially Tet and the April 30 long weekend. The road up gets congested and the falls area loses its quiet appeal.
How to get there from Hanoi
Thac Bac is roughly 80 km northwest of Hanoi, reachable in about 2-2.5 hours by motorbike or car.
By motorbike
The most common option. Take the Noi Bai expressway north, then cut west through Vinh Yen toward Tam Dao town. From Tam Dao town, the waterfall is signposted β about 5 km further along a mountain road. Petrol for the round trip runs around 80,000-120,000 VND depending on your bike. The mountain road has tight curves, so ride sober and slow, especially on the way down.
By car or taxi
A private car from Hanoi costs roughly 1,200,000-1,500,000 VND for a day trip (round trip, including waiting time). Grab doesn't reliably operate this far out, so arrange a return in advance or negotiate with a local driver.
By bus
Catch a bus from My Dinh station to Vinh Yen (about 50,000-70,000 VND, 1.5 hours), then hire a "xe om" (motorbike taxi) from Vinh Yen to Tam Dao and the falls β expect 150,000-200,000 VND one way. This is the budget option but the least flexible.
Photo by Quang Nguyen Vinh on Pexels
What to do
1. Hike to the falls
The trail from the access point is around 1.5 km through forest. It's not technical β stone steps for most of it β but it's steep in sections. Allow 30-40 minutes each way. There's a small entrance fee, usually 20,000-30,000 VND.
2. Swim in the lower pools
If you visit between May and October, the pools at the base are deep enough to swim. The water is cold β refreshingly so after the hike. Bring a towel and a dry bag for your phone. There are no changing rooms.
3. Walk the Tam Dao town strip
Tam Dao town itself is a compact hilltop settlement with French-era villa ruins, a stone church, and a main street lined with food stalls. It's got a slightly faded resort-town energy β not charming exactly, but interesting. Worth an hour of wandering.
4. Hike toward the Tam Dao peaks
If you want more than a waterfall visit, trails from Tam Dao lead toward the three main peaks (Thien Thi, Thach Ban, Phu Nghia). These are full-day hikes requiring a local guide, arranged through guesthouses in town for around 500,000-800,000 VND per group.
5. Visit the national park forest
Tam Dao National Park surrounds the area. Even short walks off the main road put you into old-growth forest. Birdwatchers come here specifically β the park hosts several endemic species.
Where to eat nearby
Tam Dao town has a strip of restaurants serving northern mountain food. Two things to seek out:
"Su su" (chayote): Tam Dao is famous for it. You'll find it stir-fried, in soup, or raw in salads. It's everywhere and it's good β sweet, crunchy, cheap. A plate runs 30,000-50,000 VND.
Hill chicken ("ga doi"): Free-range chicken grilled or steamed, served with rice and local greens. Expect 200,000-350,000 VND for a whole bird, enough for two or three people. Most restaurants along the main strip serve it.
If you're craving something familiar, "[pho](/posts/pho-vietnam (λ² νΈλ¨ / θΆε / γγγγ )-noodle-soup-guide)" and "banh mi" are available in town, though neither is the reason to eat here.
Where to stay
Tam Dao town has plenty of accommodation, from basic guesthouses to mid-range hotels.
- Budget: Guesthouses and homestays from 250,000-400,000 VND/night. Simple rooms, hot water, mountain views if you're lucky.
- Mid-range: Hotels along the main road run 600,000-1,200,000 VND/night. Some have balconies overlooking the valley.
- Splurge: A few newer resorts on the outskirts charge 1,500,000-3,000,000 VND/night with proper amenities.
Book ahead on weekends from May to August. Weekdays, you can walk in and negotiate.
Photo by Quang Nguyen Vinh on Pexels
Practical tips locals would tell you
- Bring a light jacket year-round. Even in summer, mornings and evenings get cool at this elevation.
- Wear proper shoes. The trail to the falls is slippery when wet, which is most of the time. Flip-flops are a mistake.
- Start early. Arrive before 9 AM on weekends to beat the Hanoi day-trippers. By noon the trail gets crowded.
- Carry cash. There are ATMs in Vinh Yen but not reliably in Tam Dao town. Card payment is rare.
- Check the weather. Fog and rain can roll in fast. This is part of the atmosphere, but if visibility drops to nothing, the mountain road becomes genuinely dangerous on a motorbike.
Common mistakes to avoid
Coming in dry season expecting big falls. January through March, the waterfall can be underwhelming. Check recent photos online or ask your hotel before making the hike.
Treating the mountain road casually. The road from Vinh Yen to Tam Dao climbs steeply with sharp switchbacks. If you're not confident on a motorbike, hire a car. Every year there are accidents on this stretch.
Skipping the town entirely. Some people drive up, see the falls, and leave. Tam Dao town is small but it's got character β the food alone is worth an extra hour.
Practical notes
Thac Bac Tam Dao works best as a day trip from Hanoi or an overnight if you want to catch the mountain at dawn. It pairs naturally with a visit to the Hung Kings Temple complex in Phu Tho if you're in the area. Pack layers, wear real shoes, and don't rush β the point of this place is the quiet.
Last updated Β· May 27, 2026 Β· independently researched, never sponsored.
