Dam Nha Phu sits about 15 km north of Nha Trang (냐짱 / 芽庄 / ニャチャン), a wide brackish lagoon where the Cai River meets the sea. It covers roughly 1,500 hectares of water fringed by mangroves, fishing hamlets, and a handful of small islands. Most visitors to Khanh Hoa province never leave the Nha Trang beachfront strip, which is exactly why the lagoon is worth the short ride out.

What it is

Dam Nha Phu is a shallow coastal lagoon — part salt, part fresh — sheltered from the open sea by a narrow sand spit and the Hon Heo peninsula. Local families have fished and farmed shrimp here for generations. The villages along the shore still run on the tidal schedule: boats head out before dawn, and the small markets along the waterfront are done by 8 a.m.

In the early 2000s, a few island-based eco-tourism parks opened on Hon Lao (Monkey Island) and Hon Thi (Orchid Island), turning the lagoon into a day-trip zone. Those parks are fine for families with kids, but the lagoon itself — the mangroves, the fishing culture, the seafood — is the real draw.

Why travelers go

Three reasons. First, it is close to Nha Trang but feels nothing like it. No high-rises, no Russian signage, no thumping pool bars. Second, the seafood here comes straight off the boats and costs a fraction of restaurant prices in the city. Third, the kayaking and boat rides through the mangrove channels are genuinely peaceful — not a manufactured "eco-experience" but actual working waterways where fishermen check their nets.

If you have been in Nha Trang for a few days and want a change of pace without a long bus ride, this is the move.

Best time to visit

Khanh Hoa's dry season runs from January through August, and those months are ideal. The lagoon is calmest from February to May — less wind, clear skies, comfortable temperatures around 28-32°C. Avoid October and November if you can; that is the tail of the rainy season, and heavy downpours can muddy the water and cancel boat trips.

Early mornings (before 9 a.m.) are best regardless of season. The light is good, the fishermen are active, and the midday heat has not set in yet.

How to get there from Nha Trang

Dam Nha Phu is about 15 km north of central Nha Trang along the coast road (QL1A, then cut east toward Phu Huu village).

  • Motorbike: The most practical option. Rental bikes in Nha Trang cost 120,000-150,000 VND/day. The ride takes 25-30 minutes. Follow Nguyen Tat Thanh north, continue on the coastal road past Hon Chong, and signs point you toward the lagoon boat piers.
  • Grab car: Around 150,000-200,000 VND one way from central Nha Trang. Agree on a return pickup or keep the driver's number — Grab availability thins out near the lagoon.
  • Organized boat tour: Several operators in Nha Trang sell Dam Nha Phu day trips (usually bundled with Monkey Island and Orchid Island) for 350,000-600,000 VND per person including lunch. These are convenient but rushed and touristy. Going independently gives you more control.

Person kayaking through the picturesque mangroves of Jalcomulco, Veracruz.

Photo by Santiago Morales on Pexels

What to do

Ride a basket boat through the mangroves

Local fishermen take visitors out in "thung chai" — round basket boats — through the mangrove channels on the lagoon's western edge. A 30-40 minute ride costs about 100,000-150,000 VND per person. The boatmen sometimes demonstrate net casting, and you will see crabs, mudskippers, and herons in the root systems. It is low-key and genuinely interesting.

Visit Hon Lao (Monkey Island)

A short boat ride from the pier at Phu Huu gets you to Hon Lao, where several hundred macaques roam semi-freely. There is a small circus-style animal show (skip it if that is not your thing) and some beaches. Entry plus boat transfer runs about 200,000 VND. Keep your sunglasses and phone secure — the monkeys are fast and experienced thieves.

Kayak the lagoon

Some guesthouses and tour operators rent kayaks for 80,000-120,000 VND per hour. Paddling across the lagoon early morning, when the water is glassy and fishing boats are heading out, is one of the better things you can do near Nha Trang. Stick to the shallows near the mangroves if the wind picks up.

Walk a fishing village

The small hamlets along the southern shore — Phu Huu and Ninh Ich — are worth an hour on foot. Drying squid on racks, women sorting the morning catch, boat repair yards. Nobody hassles you; this is not a tourist village. A nod and a "xin chao" goes a long way.

Swim at Hon Thi

Orchid Island (Hon Thi) has a small beach and some walking trails through gardens. It is quieter than Hon Lao and better if you just want to swim and sit. Boat transfer and entry combined is around 180,000 VND.

Where to eat nearby

Seafood is the obvious play. Small restaurants along the road near the boat piers serve whatever came in that morning — grilled prawns, steamed clams, fried squid — at prices far below Nha Trang tourist restaurants. Expect to pay 80,000-150,000 VND for a plate of grilled shrimp that would cost double in the city.

Ask for "[banh canh](/posts/banh-canh-vietnam (베트남 / 越南 / ベトナム)-thick-noodle-soup) cha ca" — a thick tapioca-noodle soup with fish cake that is a Khanh Hoa staple. It is simple, filling, and costs about 30,000-40,000 VND a bowl. "Bun cha ca" (fish cake noodle soup, thinner rice noodles) is another local variation worth trying.

If you head back toward Nha Trang hungry, the stretch of seafood shacks near Hon Chong promontory is a solid middle ground between lagoon-village prices and city-center markup.

Where to stay

Most travelers base themselves in Nha Trang and do Dam Nha Phu as a day trip, which makes sense given the short distance. In Nha Trang:

  • Budget: Hostels and guesthouses near the beach run 200,000-400,000 VND/night.
  • Mid-range: Hotels along Tran Phu street go for 600,000-1,200,000 VND/night.
  • Splurge: Resorts north of the city toward the lagoon area charge 2,000,000+ VND/night.

There are a few homestays closer to the lagoon in Ninh Hoa town (10 minutes west), but options are limited and Vietnamese-language booking is usually required.

Aerial view of a picturesque fishing village and harbor with boats. Lush greenery and mountains surround the area.

Photo by Tuan Vy on Pexels

Practical tips

  • Bring cash. Nothing around the lagoon takes cards. ATMs are back in Nha Trang.
  • Sunscreen and a hat are non-negotiable. There is almost no shade on the water.
  • Negotiate boat prices before boarding. Agree on the route, duration, and total cost. Get it on paper or in a text message if your Vietnamese is shaky.
  • Carry water. Vendors at the piers sell drinks, but once you are on the water or in the mangroves, there is nothing.

Common mistakes

  • Booking a packaged day tour when you could just ride a motorbike up. The group tours cram Monkey Island, Orchid Island, and lunch into five hours with minimal free time. Going solo costs roughly the same and lets you linger.
  • Arriving at midday. The lagoon bakes in the afternoon sun and most fishing activity is over. Get there by 7-8 a.m.
  • Ignoring the lagoon itself. Most tour groups beeline for the islands and skip the mangroves and fishing villages entirely. The lagoon is the point — the islands are a bonus.

Practical notes

Dam Nha Phu works best as a half-day or full-day trip from Nha Trang. Pair it with a stop at Hon Chong rocks on the way back. If you are spending more than two or three days in the Nha Trang area, the lagoon gives you a different texture — working coast instead of resort coast — and it takes almost no effort to reach.

— FIN —

Last updated · May 20, 2026 · independently researched, never sponsored.