I saw the video on a Tuesday afternoon, bleary‑eyed and scrolling, and I nearly kept going. People floating in a saltwater lagoon with actual tropical fish — no snorkels, no dive boats, no wetsuits, just humans and small striped fish drifting together in water so clear it looked like glass. I watched the clip three times, convinced it was staged, and then I got on my motorbike and drove fifteen minutes north of Nha Trang to see it for myself. What I found was not staged. It was, hands down, the most unusual pool I have ever waded into. 🐠
Amiana Resort is tucked behind a discreet gate on Phạm Văn Đồng Street, and the moment you step inside, the noise of the city fades to a distant hum. But the real star — the reason I’ve now been back twice — is the 2,500 m² natural saltwater lagoon that dominates the property. It’s filled with dozens of small tropical fish, mostly black‑striped sergeant majors and silvery mullet, that live here permanently. They’re not in a tank. They’re not cordoned behind glass. They swim right up to you, darting between your legs and nibbling at the tiny algae on the walls. When I first lowered myself into the water, a school of them swirled around my ankles like I was a new piece of reef, and I laughed out loud. A grown man, alone in a pool, giggling at fish. That’s the effect this place has. If you’re planning your own visit, I always start by scanning flight deals to Nha Trang — it locks in the best route, and the resort is an easy Grab ride from the city centre (around 150,000–200,000 VND). The resort also runs a complimentary shuttle bus — just book your seat at reception a day before. If you prefer the freedom to explore the coastline on your own schedule, you can rent a car online and reach the resort in under twenty minutes.
🐠 The Lagoon: No Snorkel, No Waves, Just Fish
The lagoon borrows its water directly from the ocean, filters it just enough to stay crystal clear, and then seeds it with fish that have grown so accustomed to humans that they treat you like part of the furniture. There are no waves, no currents, and no jellyfish — just still, warm saltwater that varies from ankle‑deep toddler zones to sections deep enough for a proper swim. I floated on my back for a full hour, watching the sky shift from blue to gold, while a school of sergeant majors swirled beneath me in perfect unison. At one point, I sat on the shallow steps and a fish the size of my palm came and inspected my toes, gently bumping against my skin before darting away. I named him Gerald. I have no evidence he was the same fish on my second visit, but I’m choosing to believe he remembered me.
Because the lagoon is protected by a natural rock barrier, it’s warm all year round and so large that you never feel crowded, even on weekends. On my first visit, I shared the entire expanse with maybe six other people — a young couple floating hand in hand, a father teaching his daughter to swim, and a solo traveller reading a paperback on the shallow steps. For another water‑based escape that feels like a five‑star secret, check out my review of the luxury day pass with crystal clear water — a different resort, same level of peace, with an artificial bay so pristine it looks like a Maldives brochure. And if you’re in the mood for something wilder, the Ba Ho Waterfalls offer a completely different kind of swimming — cliff jumps and natural pools hidden deep in the jungle, where the fish are wilder and the water is mountain‑cold. Between the lagoon and the waterfalls, you could build a perfect Nha Trang water day.
💰 Day Pass & What You Get (2026 Prices)
- 🎟️ Adults: 600,000 VND – includes a lounger, towel, and a 100,000 VND food voucher to use at the resort.
- 👶 Children: 400,000 VND – same inclusions.
- ⏰ Hours: 6:30 AM – 6:30 PM daily. I recommend arriving as close to opening as you can manage — the lagoon is quietest before 10 AM, and you’ll have the fish almost entirely to yourself.
- 📞 Booking: Call ahead to confirm availability, especially on weekends. I’ve never had trouble getting in on a weekday, but weekends draw more local families, and the best loungers near the infinity pool go fast.
The voucher knocks a small dent in the food bill, but honestly, I recommend using it for a smoothie or a light snack and saving your serious appetite for later. Which brings me to the single most important piece of advice in this entire article. While you’re relaxing by the lagoon, having an eSIM for Vietnam keeps your data flowing — the resort WiFi is decent, but the signal near the beach can be patchy, and you’ll want to fire up Grab for the next tip without any buffering.
🍜 The Dinner Trap (and How to Beat It)
Dinner at the resort is expensive and average. I ordered a seafood platter on my first visit and immediately wished I’d ordered Grab instead. The couple next to me — clearly veterans of this place — received a steaming bag of Vietnamese street food from the app, spread it out on their loungers, and ate like royalty while I poked at my overpriced squid. I learned my lesson. As sunset approaches, open the Grab app and order delivery from one of the city restaurants. The driver will meet you at the main entrance. On my second visit, I devoured a bún chả and spring‑roll combo on my lounger while the sun melted into the ocean, and it was a genuine five‑star moment for a fraction of the cost. 🍜
If you’re looking for a resort where in‑house dining is actually part of the magic, my guide to the private pool villa that gave me total peace of mind covers a property that does food exceptionally well — with a breakfast buffet so enormous it’s worth the trip alone. And if you’re craving a proper feast, the buffet with 250+ dishes and free VIP rooms in central Nha Trang is the polar opposite of Amiana’s quiet lagoon — loud, abundant, and perfect for a post‑swim dinner.
🏊 More Than Just a Fish Pool
- 🔥 Heated freshwater pool. Perfect during the cooler months or if you simply want a break from the saltwater. It’s spotless, quiet, and overlooks the same ocean view. I swam laps here after my lagoon session and had the entire pool to myself.
- 🏖️ Private beach. A small, clean stretch of sand with calm water and no hawkers. The loungers are free for day‑pass holders, and the water is shallow enough for children to wade safely.
- 🧖♀️ Open‑air spa. Local herbal therapies in a stunning garden setting. I booked a sixty‑minute massage and it was worth every dong — the therapist used warm herbal compresses and the sound of the ocean was the only background music. Prices are resort‑level, but the quality justifies it.
🦟 Things Nobody Warns You About
- Mosquitoes appear at sunset. The grounds are lush, and after rain the little vampires come out in force. A quick spray of repellent solves it — bring your own, because the resort shop charges a premium for a tiny bottle.
- No nightlife nearby. If your idea of a good evening involves DJ sets and dancing, this is not your place. It’s for decompressing, not partying. The bar closes early, and the vibe after dark is subdued and quiet — perfect for reading, less so for socialising. If you’re craving a livelier evening, Bui Vien Walking Street in Saigon is the chaotic counterpoint — save it for a different leg of your trip.
- The Grab trick works both ways. If you don’t want to wait for the shuttle back to the city, simply order a Grab to the main entrance. It’s fast, costs roughly the same as the taxi you would have taken anyway, and saves you waiting around in the heat.
💎 Verdict: My New Fin‑ned Friends
Amiana Resort is not trying to be a trendy beach club or a luxury fortress. It’s a quiet, slightly retro coastal retreat with a genuinely one‑of‑a‑kind swimming experience. The lagoon, the fish, the silence — it’s the kind of place that makes you feel like a kid again, floating on your back while tiny striped fish swirl around your body. Bring repellent, order Grab for dinner, and let the fish do the rest. 🐠
For another quiet coastal escape that rewards those who slow down, check out the beach where I lost track of time (and tourists). Between the lagoon and that beach, you could build a perfect, unhurried week — mornings with the fish, afternoons on an empty stretch of sand, evenings with street food on a lounger. Before any trip, I always make sure I’m covered — a good travel insurance policy gives me peace of mind, whether I’m swimming in a lagoon or navigating the coastal roads on a motorbike. And if you’re still piecing together your Nha Trang accommodation, my full area guide breaks down every neighbourhood — from the beachfront high‑rises to the quiet hillside pockets — and you can browse hotels in Nha Trang to find something within easy reach of the lagoon.
Disclosure: This article contains affiliate links. If you book through them, I may earn a small commission at no extra cost to you. I only recommend experiences I have personally tested and loved. And yes, I did name a fish Gerald. I stand by it.
