Koh Rong Diving and Snorkeling Guide

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Koh Rong has developed into one of Cambodia’s main diving hubs, with several established dive shops running PADI courses and day trips to reef sites around the island and further afield.

Dive shops and operators

Multiple PADI-affiliated dive shops operate out of Koh Touch village, offering everything from Discover Scuba introductory sessions to full Open Water certification courses. Comparing a couple of shops on group size and equipment condition before booking is worth the extra half hour, since quality varies between operators.

Popular dive sites

Sites around Koh Rong and the wider archipelago offer a mix of coral reef and occasional larger marine life sightings, though visibility and conditions vary seasonally. Local dive shops will recommend specific sites based on current conditions rather than a fixed rotation.

Snorkeling without diving

If certification isn’t something you want to pursue, snorkel trips are widely available and considerably cheaper, typically run as half-day boat trips stopping at two or three spots. Some snorkeling is also possible directly from shore at calmer beaches like parts of Long Beach.

PADI certification courses

Open Water certification typically takes three to four days and costs roughly $300-400, a broadly standard regional rate. Shorter Discover Scuba sessions for those without certification run a few hours and cost considerably less, giving a taste of diving without the full course commitment.

Best time of year for diving

Visibility and conditions are generally best during the dry season months — see our best time to visit Koh Rong guide for the fuller seasonal picture affecting water clarity and sea conditions.

What to bring

If you have your own mask and fins, bringing them can be more comfortable than rental gear, though all dive shops provide equipment as part of standard packages. A reef-safe sunscreen is worth using specifically here, given the reef systems these trips visit.

Day trips versus multi-day dive packages

Single-day snorkel or two-tank dive trips suit travelers with limited time, while multi-day dive packages combined with certification courses suit those planning a longer island stay specifically built around diving.

Combining diving with other Koh Rong activities

A day of diving pairs naturally with an evening bioluminescent plankton swim — see our bioluminescent plankton guide for timing that around a dive day.

Frequently asked questions

Is Koh Rong good for diving?

Yes, it’s one of Cambodia’s main diving hubs, with multiple established PADI dive shops offering courses and trips across a range of budgets and experience levels.

Do I need certification to snorkel around Koh Rong?

No — snorkeling is open to anyone and widely available as half-day boat trips or directly from calmer beaches without any certification required.

How much does an Open Water certification cost on Koh Rong?

Roughly $300-400 for a standard three to four-day course, broadly in line with regional rates elsewhere in Southeast Asia.

Marine life you might see

Reef fish, occasional turtles, and a variety of coral species make up the typical sighting range around Koh Rong’s dive sites. Larger pelagic sightings are less common but do occur, particularly on trips venturing further from the main island toward the wider archipelago.

Safety and choosing a reputable operator

Confirm a dive shop’s certification credentials and check that instructor-to-student ratios are reasonable, particularly for beginner courses. Established operators with visible PADI affiliation and consistent reviews are worth prioritizing over the cheapest option, given the safety stakes involved in diving specifically.

Night diving and specialty courses

Some dive shops on Koh Rong also offer night dives and specialty courses like Advanced Open Water for certified divers wanting to build on a base certification during a longer island stay.

Combining Koh Rong diving with Koh Rong Samloem

Some dive trips depart from Koh Rong but visit sites nearer Koh Rong Samloem, so it’s worth asking your dive shop about their specific route rather than assuming all trips stay exclusively around Koh Rong itself.

Weather and cancellations

Rough weather during the wet season can lead to cancelled or rescheduled dive trips, particularly for boat-dependent excursions to further sites. Building a buffer day into your schedule if diving is a priority avoids losing the opportunity entirely to a single bad-weather day.

Where to stay if diving is your priority

Staying at Koh Touch puts you within walking distance of every major dive shop on the island, cutting out any need for transport before an early morning boat departure. Budget guesthouses there run $15-25 a night, while a step up in comfort is available at mid-range bungalow properties nearby — see our best hotels and bungalows on Koh Rong guide for specific picks close to the main dive shops.

Booking dive packages through your accommodation

Many guesthouses and bungalow properties at Koh Touch have partnerships with specific dive shops and can bundle a room-and-diving package or at least arrange pickup timing directly with the operator, which simplifies logistics if you’re booking a multi-day certification course alongside your stay.

Staying further out and commuting to dive

If you’d rather base yourself on the quieter Long Beach and commute to Koh Touch for diving, that’s workable too, though it adds a short water-taxi or walking transfer each morning — factor that into your schedule if early dive boat departures are involved.

Costs to budget beyond the diving itself

Beyond the course or trip fee, budget for accommodation, food, and the occasional tip for boat crew and instructors, which isn’t mandatory but is customary for good service, typically a few dollars per diver per day of diving.

Physical requirements and health considerations

Diving requires reasonable physical fitness and a basic medical questionnaire before certification courses — certain conditions (cardiac issues, recent surgery, severe asthma) may require a doctor’s clearance. Being upfront with your dive shop about any health concerns before booking avoids a wasted trip if you’re turned away on medical grounds.

Travel insurance for diving

Standard travel insurance doesn’t always cover diving-related incidents, particularly at depth or during certification — checking your policy specifically for diving coverage, or adding a diving-specific rider, is worth doing before a multi-day course rather than assuming standard coverage applies.

Sustainable diving practices

Reef systems around Koh Rong face real pressure from tourism, so choosing operators who visibly practice reef-safe protocols — no touching coral, controlled buoyancy training before reef dives, reef-safe sunscreen only — makes a genuine difference to the site’s long-term health.

The bottom line

Koh Rong offers a solid, accessible entry point into diving for beginners and enough variety in sites and trip lengths to keep experienced divers interested for a multi-day stay. Basing yourself at Koh Touch simplifies logistics considerably if diving is the main reason for your visit.