Co To is one of those places that rewards the extra effort it takes to reach. Sitting about 50 km off the coast of Quang Ninh province, this small island district draws mostly domestic travelers looking for clear water and a slower pace β€” and it delivers on both.

What Co To is and why it matters

Co To is an archipelago of around 50 islands, though only a handful are inhabited. The main island, Co To Lon, is where most travelers base themselves. Co To beach β€” often called Bai Co To or Hong Van beach β€” sits on the island's eastern side, a roughly 2 km crescent of pale sand backed by casuarina trees.

For decades, Co To was primarily a fishing community with a military outpost. Tourism only picked up in the last ten years or so, and the island still feels undeveloped compared to Phu Quoc or Cat Ba. That's a big part of its appeal. There are no resort mega-complexes, no water parks, no loud bar strips. Just a quiet island with good seafood and water clean enough that you can actually see your feet when you wade in.

Why travelers go

The honest answer: the water. Northern Vietnam (λ² νŠΈλ‚¨ / θΆŠε— / γƒ™γƒˆγƒŠγƒ ) isn't known for great beaches β€” Ha Long Bay is spectacular from a boat but you wouldn't swim there for fun. Co To is different. The water along the east-facing beaches is genuinely clear, with a turquoise tone you don't expect this far north. Outside of peak weekends, you can have long stretches of sand mostly to yourself.

The other draw is the pace. Co To has no traffic lights, no Grab cars, no chain coffee shops. You rent a motorbike, ride around the island in under an hour, eat grilled squid at a beachside stall, and call it a day. If you've been grinding through a packed Hanoi itinerary, it's a solid reset.

Best time to visit

June through August is prime season β€” warm water, generally calm seas, and the ferries run reliably. July is the busiest month; book accommodation at least a week ahead if you're visiting on a weekend.

April and May are good shoulder months. The water is cooler but swimmable, and you'll have fewer crowds. September is hit-or-miss β€” occasional storms can cancel ferries for days.

Avoid November through March entirely. Seas are rough, most ferries are suspended or run on reduced schedules, and many guesthouses close. The island essentially shuts down for winter.

How to get there from Hanoi

Co To requires two legs: Hanoi (ν•˜λ…Έμ΄ / ζ²³ε†… / γƒγƒŽγ‚€) to the coast, then a ferry to the island.

Hanoi to Van Don (or Cam Pha)

Take a bus from My Dinh or Bai Chay station to Van Don. The ride is about 4.5-5 hours and costs 200,000-280,000 VND depending on the operator. Some travelers break the journey with a night in Ha Long Bay (ν•˜λ‘±λ² μ΄ / δΈ‹ιΎ™ζΉΎ / ハロン湾), which is worth considering if you haven't visited before.

Ferry from Van Don to Co To

Ferries depart from Cai Rong port in Van Don. There are two types:

  • Speedboat: roughly 75 minutes, 250,000-350,000 VND per person. Two or three departures daily in peak season, usually at 7:00, 8:00, and sometimes 13:00.
  • Slow ferry: about 2.5-3 hours, 120,000-170,000 VND. One departure, typically early morning.

Buy tickets a day ahead during summer weekends β€” they do sell out. You can purchase at the port or through your guesthouse. Bring motion sickness pills if you're prone; the open-sea stretch can get choppy even in summer.

A small fishing boat floats on a peaceful turquoise sea near a lush coastline.

Photo by πŸ‡»πŸ‡³πŸ‡»πŸ‡³ Việt Anh Nguyα»…n πŸ‡»πŸ‡³πŸ‡»πŸ‡³ on Pexels

What to do on Co To

Ride the coastal road on a motorbike. The loop around Co To Lon is only about 25 km, but the road along the eastern coast passes through forest, past empty coves, and along cliff edges with wide ocean views. Rentals run 120,000-150,000 VND per day from most guesthouses.

Swim at Hong Van beach. This is the main beach and the best for swimming. The sand is fine, the gradient is gentle, and there are a few stalls selling drinks and grilled corn. Mornings before 9:00 are the quietest.

Hike to the lighthouse. Co To lighthouse sits on the island's highest point, about 100 meters above sea level. The walk up takes 20 minutes from the road and gives you a full panorama of the archipelago. Go late afternoon β€” the light is better and it's cooler.

Take a boat to Co To Con. The smaller island south of Co To Lon has a beautiful beach that's less visited. Local boats make the trip for around 80,000-120,000 VND per person round trip. Bring your own water and snacks β€” there's almost nothing on the island.

Watch the squid boats at night. Co To's fishing fleet heads out after dark using bright green lights to attract squid. From the beach, the horizon lights up like a floating city. It's one of those things that sounds underwhelming until you see it.

Where to eat

Seafood is the obvious play here, and it's fresh. Most beachside restaurants operate on a "point and choose" system β€” pick your fish or shellfish from a tank or ice display, agree on the price, and they'll grill or steam it.

"Sam" (horseshoe crab) is a local specialty, usually served in a salad. It's an acquired taste but worth trying once. Grilled "muc" (squid) brushed with chili sauce is everywhere and consistently good β€” expect to pay 80,000-150,000 VND per plate depending on size.

For something beyond seafood, look for "bun" noodle soup stalls in the small town center near the port. Nothing fancy, but a 35,000 VND bowl of broth and noodles is a solid breakfast before a day on the beach.

Where to stay

Co To doesn't have luxury resorts. Accommodation falls into two categories:

  • Guesthouses and homestays: 300,000-600,000 VND per night for a clean room with air conditioning, hot water, and usually breakfast. Most are within a 10-minute ride of the main beach.
  • Mid-range mini-hotels: 700,000-1,200,000 VND per night. A few have sea-facing balconies and slightly better mattresses. Co To Eco Lodge and a handful of newer properties fall in this bracket.

Book ahead for June-August weekends. Midweek, you can often negotiate on arrival.

Couple stands on a pier at Ha Long Bay, Vietnam, with a ship in the distance.

Photo by Alan Wang on Pexels

Practical tips locals would tell you

  • Bring cash. ATMs exist but sometimes run dry on busy weekends. Card acceptance is rare outside a couple of hotels. Bring enough VND from the mainland.
  • Sunscreen and mosquito repellent β€” the island has both sun and bugs in abundance. Shops on Co To stock basics, but selection is limited and prices are marked up.
  • Fill your motorbike tank when you see a fuel station. There are only a couple on the island.
  • Check ferry schedules the day before departure. Cancellations happen with little notice when weather turns. Your guesthouse owner will know before the internet does.

Common mistakes to avoid

Showing up without a ferry booking on a summer weekend and expecting to walk on. Plan ahead.

Trying to do Co To as a day trip β€” the ferry schedule doesn't really allow it, and even if it did, you'd spend more time on boats than on the island. Two nights is the sweet spot.

Expecting Phu Quoc (ν‘ΈκΎΈμ˜₯ / ε―Œε›½ε²› / フーコック)-level infrastructure. Co To is still a small island with small-island limitations. That's the point, but pack your patience alongside your swimsuit.

Practical notes

Co To works best as a 2-3 night side trip bolted onto a broader northern Vietnam route. Pair it with Ha Long Bay or a few days in Hanoi and you get a nice contrast between city chaos and island quiet. The journey is part of the experience β€” just make sure you're traveling in the right season.

β€” FIN β€”

Last updated Β· May 27, 2026 Β· independently researched, never sponsored.