Two boulders perched on a coastal hillside, tilting toward each other like they're mid-conversation — that's Hon Trong Mai, and it's been the symbol of Sam Son beach town in Thanh Hoa province for as long as anyone here can remember. It's not a grand monument or a sprawling national park. It's a pair of rocks. But the story behind them, the coastline around them, and the seafood town they sit in make for a worthwhile stop if you're passing through central Vietnam (베트남 / 越南 / ベトナム) or looking for a beach trip that isn't overrun with foreign tourist infrastructure.
What It Is and Why It Matters
Hon Trong Mai translates loosely to "Rooster and Hen Rocks." The formation sits on Truong Le hill at the southern end of Sam Son beach. Two large boulders — one taller and slightly narrower, the other rounder — lean toward each other at an angle that, with a bit of imagination, resembles a rooster and a hen. Local legend says they're lovers turned to stone, which is the kind of origin story you'll hear at half the rock formations in Vietnam, but it works.
The rocks have been a cultural symbol of Sam Son since the French colonial period, when the town was first developed as a seaside retreat. They appear on the town's official emblem, on local signage, and on roughly every postcard sold within a 10 km radius. In 2020, a typhoon knocked the smaller "hen" rock off its perch. Local authorities restored it — a process that drew national attention and some debate about whether gluing a rock back counts as preservation. Either way, it's back in place.
Why Travelers Go
Most visitors come because Sam Son is one of the closest beach towns to Hanoi — about 170 km south — and Hon Trong Mai is the single most photographed spot in town. It's a quick visit, not a full-day affair, but the surrounding coastline and Truong Le hill offer good walking and views of the Thanh Hoa shoreline. Vietnamese domestic tourists make up the overwhelming majority of visitors here, so the vibe is local rather than international.
Best Time to Visit
April through June is ideal. The weather is warm and dry, the sea is calm enough for swimming at nearby Sam Son beach, and you beat the peak domestic holiday crowds that descend in July and August. Weekdays in May or early June are the sweet spot — fewer people, lower room rates, and pleasant 28-32°C temperatures.
Avoid the stretch around the April 30th national holiday if you dislike crowds. Sam Son is a Hanoi (하노이 / 河内 / ハノイ) favorite for long weekends, and the town gets packed. September and October bring occasional storms; November through February is cooler and grey, which makes the beach less appealing but the town quieter.
How to Get There
From Hanoi, you have a few options:
- Bus: Regular buses from Giap Bat or Nuoc Ngam bus stations to Sam Son. The ride takes about 3.5-4 hours and costs 120,000-180,000 VND depending on the operator. Hoang Long and Camel Travel both run this route.
- Train: Take the Reunification Express to Thanh Hoa station (about 3-3.5 hours, tickets from 90,000 VND for a hard seat to 350,000 VND for a soft sleeper). From Thanh Hoa city, grab a local bus or taxi to Sam Son — it's another 16 km east, roughly 30 minutes and around 150,000-200,000 VND by taxi.
- Motorbike: The ride from Hanoi is about 170 km via QL1A, mostly flat and straightforward. Budget 3.5-4 hours with stops.
From Da Nang or Hue, Sam Son is a longer haul — you'd take the train north to Thanh Hoa station or a bus. It's around 500 km from Da Nang, so this works better as part of a north-south route than a standalone trip from central Vietnam.
Photo by Dương Nguyễn on Pexels
What to Do
Walk Truong Le Hill
Hon Trong Mai sits on the hillside, so you'll naturally end up walking Truong Le hill to reach it. The path is paved and takes about 20 minutes at a relaxed pace. From the top, you get a wide view of Sam Son beach stretching north and the rocky coastline to the south. Early morning is best for photos — the light hits the rocks from the east and you avoid midday heat.
Sam Son Beach
The main beach runs about 6 km north of Hon Trong Mai. It's a wide, sandy stretch — not the prettiest beach in Vietnam, but perfectly fine for a swim. Beach chair rental runs about 30,000-50,000 VND. The water is warmest from May to September.
Den Doc Cuoc
This temple sits on another rocky outcrop at the north end of Sam Son beach, dedicated to a giant from Vietnamese mythology who split himself in two to fight sea invaders. It's a 15-minute walk from the main beach strip and gives you a second hillside viewpoint. Entry is free.
Seafood Market and Night Strip
Sam Son's beachfront road comes alive in the evening with seafood restaurants and vendors. The area around Tran Hung Dao street is where most of the action is. Wander, compare prices (they're usually posted on boards), and pick whatever looks fresh.
Co Tien Hill
About 2 km south of Hon Trong Mai, Co Tien (Fairy) hill has another set of rock formations and a quieter coastal path. Good for a morning walk if you want to escape the main beach crowds.
Where to Eat Nearby
Sam Son is a seafood town, full stop. Grilled squid, steamed clams, and crab spring rolls are everywhere. Two things worth seeking out specifically:
- Nem chua Thanh Hoa: This fermented pork roll is Thanh Hoa province's signature snack. It's sour, slightly funky, wrapped in banana leaf and eaten with garlic and chili. You'll find it at market stalls and as a side dish in most restaurants. Buy a stack to take on the train home.
- Cha gio (spring rolls) stuffed with crab: Local restaurants along Tran Hung Dao street serve fried spring rolls filled with crab meat. Expect to pay 60,000-100,000 VND for a plate.
A full seafood meal for two — grilled fish, clams, rice, and drinks — runs about 300,000-500,000 VND at a mid-range beachfront place.
Where to Stay
Sam Son has hundreds of hotels and guesthouses, almost all catering to domestic tourists.
- Budget: Basic guesthouses and "nha nghi" (mini-hotels) along the beachfront from 200,000-400,000 VND per night. Clean enough, air-conditioned, minimal frills.
- Mid-range: Newer hotels with sea views, breakfast included, around 500,000-1,000,000 VND per night. FLC Sam Son is a large resort complex at the south end of the beach if you want a pool and buffet setup.
- Weekday vs. weekend: Prices jump 30-50% on weekends and holidays. Book ahead for any trip in July-August or around national holidays.
Photo by Quang Vuong on Pexels
Practical Tips Locals Would Tell You
- Bargain at seafood restaurants. Prices on the board are starting points, especially for tourists. Confirm the price per kilogram before ordering.
- Bring cash. Most small restaurants and guesthouses in Sam Son don't take cards. There are ATMs on the main road but they can run out during peak weekends.
- Wear shoes on the hill. The path to Hon Trong Mai is paved but uneven in spots, and the rocks around the formation are slippery when wet. Flip-flops work, but proper sandals are better.
- Don't expect English. Sam Son is a Vietnamese domestic destination. Google Translate will be your friend here. Learn "bao nhieu" (how much?) at minimum.
Common Mistakes to Avoid
- Arriving on a summer weekend without a booking. The town fills up fast from June through August, especially Saturday nights. You'll pay double for a worse room.
- Spending a full day at Hon Trong Mai. It's a 30-45 minute visit. Plan it as part of a Sam Son beach trip, not as a standalone destination.
- Skipping Thanh Hoa city entirely. If you're passing through, the city itself has decent "bun cha" spots and local "pho (쌀국수 / 越南河粉 / フォー)" joints that are less touristy than anything on the Sam Son strip.
Practical Notes
Sam Son works best as an overnight or two-night trip from Hanoi, or a half-day stop on a north-south route. Hon Trong Mai is the anchor sight but the real draw is cheap seafood, a low-key beach, and a town that runs on Vietnamese holiday rhythms rather than international tourism. If you're heading further south, Ninh Binh (닌빈 / 宁平 / ニンビン) is about 100 km north and pairs well for a combined trip.
Last updated · May 19, 2026 · independently researched, never sponsored.
