Cham Islands Day Trip from Hoi An (2026): How It Works

Twenty kilometers off Hoi An sits a cluster of granite islands ringed by 357 hectares of coral reef, and most visitors spend their entire trip staring at Old Town lanterns instead. That is a mistake. The Cham Islands (Cu Lao Cham) are the closest thing this stretch of coast has to a genuine wilderness, and getting there is a lot simpler than the tour brochures make it sound.

Here is how the trip works, what the marine reserve protects, and why you will get quietly scolded for bringing a plastic bag.

How the trip works

Speedboats leave from the Cua Dai speedboat pier, a short drive east of the Old Town, and cross to the islands in 15 to 20 minutes. That is the whole logistical challenge - it is a shorter boat ride than most airport transfers.

A standard day trip includes snorkeling at two or three reef sites, lunch on the island (usually fresh seafood, because you are surrounded by the stuff that got caught this morning), and a couple of hours on the beach before the boat back. Expect to pay $25 to $50 USD per person depending on the operator and group size - the gap is mostly about boat quality and how many other people you are sharing a reef with.

You can book through a tour operator like Cu Lao Cham Island Tour, which handles the boat, snorkeling gear and lunch as one package, or go DIY by getting yourself to the pier and buying a ticket on a scheduled boat. DIY saves money and gets you there just as fast. It also means you are on your own for gear, lunch, and figuring out which reef is which, so unless you have done this before, the packaged version is the easier morning.

The snorkeling, and what you are swimming over

The Cu Lao Cham - Hoi An Biosphere Reserve is not a marketing label somebody slapped on a nice beach. It is a UNESCO-recognized zone covering 33,737 hectares that protects more than 357 hectares of coral reef, 80 hectares of seagrass, ten beaches and 1,500 hectares of primary forest, according to Hoi An City's own conference materials on the reserve.

Cham Island snorkeling is good by Vietnamese standards - do not go in expecting the Great Barrier Reef, go in expecting a healthy, actively managed reef that has clearly benefited from someone policing it. Visibility shifts with the season and recent weather, and the operators know which of the two or three sites is worth visiting on a given day. And if a snorkel does not go deep enough for you, Cham Island Diving runs proper dive trips to the same reef - more fish, more paperwork.

One rule the guides enforce without much patience for negotiation: do not touch the coral. It grows slowly, it is easy to damage with a careless fin kick, and the reason there is still reef left to look at is that this reserve has been protecting it for years while plenty of comparable sites in Southeast Asia got loved to death.

The plastic ban nobody warns you about

This is the part most guides skip entirely, and it is the one detail that changes how you should pack. Cu Lao Cham banned plastic bags in 2009, banned plastic straws in 2018, and rolled out a zero-waste campaign in 2019 - years before mainland Vietnam got anywhere near that kind of policy.

The boat crews take it seriously. Bring a cloth or reusable bag for anything you are carrying onto the island, because a plastic one is likely to get refused at the pier before you even board. It is a minor inconvenience and, frankly, a good sign - an island this committed to keeping plastic out of the water is exactly the kind of place worth protecting with a day trip's worth of tourist dollars instead of ignoring in favor of another Old Town lantern photo.

When to go

Boats run roughly March to September. Outside that window, the sea gets too rough for a comfortable crossing and most operators stop running trips altogether - this coastline takes around ten typhoon-and-flood events in a typical year, and the same weather pattern that floods the Old Town every October and November is exactly what keeps the boats tied up at the pier.

If your Hoi An trip lands outside March to September, the Cham Islands are simply off the table - plan around it rather than showing up in November hoping for a calm day, because you will not get one.

Booking advice

Book through a reputable operator rather than a random tout waving a laminated menu near the Old Town bridge. Prices barely move between operators, so the differentiator is boat quality, group size, and whether the guide knows the reef. Browse listings in our activities and tours category to compare what is running before you commit.

If you are staying near the water already, ask your hotel which pier transfer they include - some throw in a free shuttle to Cua Dai, which saves you a taxi each way.

Frequently asked questions

Can you stay overnight on the Cham Islands?

Yes. There are island homestays if you want more than a day trip's worth of time on the water. It is a quieter, slower option than the speedboat-and-back itinerary most visitors do, worth considering if you want an actual beach day rather than a half-day excursion.

Is the Cham Islands trip doable independently?

Yes - get yourself to the Cua Dai speedboat pier and buy a ticket on a scheduled crossing rather than booking a packaged tour. You will handle your own snorkel gear and lunch, so it suits travelers who are comfortable sorting logistics on the fly rather than those who want everything handled.

When do the boats run?

Roughly March through September. Outside that window the sea is too rough for a comfortable 15 to 20 minute crossing, and most operators simply stop running - this lines up with the same central-coast weather pattern behind Hoi An's flood season.

Cham Islands or My Son - which is the better day trip?

They are not really competing for the same afternoon. My Son is ruins, history and heat; the Cham Islands are reef, beach and boat spray. If you only have one extra day in Hoi An, pick whichever you would enjoy more - a temple complex or a coral reef - because both are worth doing if your schedule allows it.

Related Hoi An guides

• Best day trips from Hoi An - how the Cham Islands stack up against the rest
• An Bang Beach - the no-boat-required beach day
• My Son Sanctuary - the other big day trip