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Khao Lak is more than a place to wait for a liveaboard. There are days when a long crossing to the islands is exactly the adventure you want, and others when a nearby wreck, a small boat and an afternoon back ashore sound just right. Having both choices is part of its appeal.
The town stretches along Thailand’s Andaman coast in Phang Nga province. Boats serving the Similan and Surin areas use several mainland piers; a Khao Lak hotel pickup does not necessarily mean boarding at the closest beach. The pier in your joining instructions matters more than the town named in the brochure.
The original guide by Sally Usher highlighted three local wrecks. Those remain useful reference points, but current operators offer different programmes and the wrecks themselves change. The notes below keep that local focus while separating a straightforward day out from a deeper, more demanding dive.
A northern Andaman dive diary
Kenneth Tan’s March 2016 film follows a Similan and Surin-area voyage, including Koh Bon, Koh Tachai and Richelieu Rock. It is an archive of that trip, not a report of today’s reef conditions or boat availability. Watch on Vimeo.
In this page you will find more detailed information about scuba diving in Khao Lak.
Table of contents
Best Dive Review
Local wrecks, each with a different character
Boonsung: the old tin-mining wreck is best known for dense schools of fish and smaller life among the encrusted metal. Go2Similan describes a seabed around 18 metres and progressive structural collapse. Low visibility and sharp edges can matter more than the headline depth; this is an exterior dive, with no safe penetration implied.
Premchai: another former dredger, closer to the Thap Lamu area. Khao Lak Explorer describes roughly 16–20 metres around the wreck and warns of nets and cables. Its relative proximity makes a shorter outing possible, subject to the actual boat and conditions.
Seachart I: a much deeper cargo wreck. Published operator descriptions place parts of the wreck in the mid-20-metre range and the seabed around 40 metres or deeper. Operators differ on whether they currently offer it: Khao Lak Explorer lists it as unavailable while Go2Similan retains a programme. A current written confirmation of the trip, qualifications and planned depth is essential; Nitrox certification does not by itself make a deep dive appropriate.
Beyond the wrecks, local operators also list Khao Na Yak and the T13 artificial-reef area. These can add variety without assuming that every local trip is a beginner’s dive. Boonsung wreck review gives the historical Divezone account.
The following map shows selected offshore sites reached on northern trips from Khao Lak, separately from the local wrecks described above.
Sites to put the geography in perspective
This selection is separate from the cruise itineraries above. Locations are surface planning references, not entry points or a guide for use underwater. Access, depth and the route around a site belong to the current local briefing. Koh Bon lies beyond the main Similan island group; Richelieu Rock is in the Surin park.
The linked site descriptions remain available if the map cannot load.
1 · Christmas Point
Granite formations near the north-west of island 9; exposed conditions can change the plan.
Location reference · checked 12 November 2026
2 · Deep Six
Boulders off the northern end of island 7, with deeper sections and current.
Location reference · checked 12 November 2026
3 · West of Eden
Reef and boulder scenery on island 7’s western side.
Location reference · checked 12 November 2026
4 · Koh Bon
A separate northern stop beyond the Similan island group; the pin represents the main ridge area.
Location reference · checked 12 November 2026
5 · Richelieu Rock
An offshore pinnacle in the Surin park, reached on selected northern programmes.
Location reference · checked 12 November 2026
How to dive Khao Lak?
A mainland stay with day diving works well for travellers who want restaurants, beaches and flexibility between diving days. Offshore day trips to the Similans, Koh Bon or Richelieu Rock are longer outings; a speedboat crossing can be a substantial part of the day.
A liveaboard exchanges those repeated transfers for nights at sea. Short cruises may focus on the Similans, while longer northern journeys can reach Surin and Richelieu. The number of nights alone does not establish the route: some boats use transfer services to join a cruise already offshore.
The useful quote names the boarding pier, hotel pickup area, cabin, equipment, park fees, Nitrox and any supplements. A companion who is not diving needs a specific answer about snorkelling supervision and shore time; a hotel base often offers more independent options.
Two ways to explore the northern Andaman
These operator examples compare two northern circuits that include the Surin area. Pins represent islands, harbour areas and regional stops, not underwater entry points. Lines show itinerary order, not navigable tracks. Weather, access and the confirmed departure programme govern the actual route.
The route descriptions below remain available if the map cannot load.
Bavaria Trip C · 6 nights, up to 22 dives
A longer northern circuit with several days in the Similans before the Surin-area stops. This is the operator’s example, not a guarantee of the sites visited.
- 1 · Thap Lamu: boarding after a Khao Lak meeting point.
- 2 · Island 4 and 3 · Island 7.
- 4 · Island 8 area.
- 5 · Island 9, continuing to 6 · Koh Bon.
- 7 · Koh Tachai.
- 8 · Surin Islands and 9 · Richelieu Rock.
- Return through 7 · Koh Tachai and 6 · Koh Bon to 1 · Thap Lamu.
Bavaria Trip C programme · checked 12 November 2026.
The Junk · 4 nights, up to 14 dives
This is the operator’s Thap Lamu example. Its joining instructions also allow Chalong for some departures, so the booked pier must be checked separately. The final coastal wreck choice depends on conditions; the pin marks a region, not a guaranteed named wreck.
- 1 · Thap Lamu: evening boarding.
- 4 · Similan island group: first diving day.
- 6 · Koh Bon and 7 · Koh Tachai.
- 8 · Surin Islands and 9 · Richelieu Rock.
- 10 · Khao Lak coastal wreck area, then 1 · Thap Lamu.
The Junk four-night programme, checked 12 November 2026.
Island-area references checked against geographic listings; exact site selection belongs to the operator’s briefing. Ko Similan · Ko Payu
Where to stay?
I usually use this website to book in advance my hotels in Khao Lak as they usually have the lowest rates I find. I like it because it's free to cancel and change the dates.
Best time to dive in Khao Lak
The northern Andaman offshore season usually runs around mid-October to mid-May, subject to official park announcements. Similan and Surin reopened on 15 October 2026. December onward often brings more settled west-coast weather, but an open park is not a guarantee that a crossing will run.
Local coastal trips have their own operating decisions and should not be assumed to run throughout the monsoon. A couple of flexible days on land can be more useful than an itinerary that depends on one perfect sea day. Large-animal encounters remain occasional, even in months marketed for manta rays or whale sharks.
Top liveaboards in Khao Lak according to divers reviews
Dive courses
A refresher or course can fit naturally into a Khao Lak stay before a cruise. Training should use sites and conditions appropriate to the student rather than a fixed list of famous locations. Offshore current, deeper wrecks and unfamiliar boat procedures are separate considerations.
Thailand’s published 2025 camera rule permits underwater camera use with Advanced Open Water certification or at least 40 logged dives. It is not a universal requirement for every diver to have 40 dives. Boat-specific certification, recent experience and equipment requirements still apply.
Scuba Diving conditions
There is no single Khao Lak visibility or current range that describes both a coastal wreck and an offshore pinnacle. Boonsung can have limited visibility despite abundant fish; the island trips are more exposed to swell and changing currents. Repeated dives and cooler water at depth can make a full wetsuit welcome even in warm surface water.
Depth, gas choice and the planned route belong in the briefing. The deeper Seachart wreck is a different proposition from a shallow training reef, and any wreck penetration requires a separate assessment, training and equipment. The normal recreational outings described here do not imply entry into wreck interiors.
Snorkelling in Khao Lak
Dedicated snorkelling trips to Similan or Surin are a better match for many non-divers than joining a scuba boat and hoping for suitable stops. Local beaches depend on sea state and may offer less reef life than the offshore islands. A long speedboat day is part of the decision for anyone prone to seasickness.
The operator should confirm suitable entry areas, supervision and lifejackets. Thailand’s published rules require snorkellers to wear a lifejacket unless they hold a recognised freediving certification.
Fishes and Coral
These six fish represent the wider northern Andaman trips sold from Khao Lak, not a checklist for the local wrecks. Morays, schooling fish and small subjects can be the highlight of a coastal day.
Whale shark
An occasional visitor on northern Andaman itineraries. A whale-shark sighting is possible, but the islands and their reefs offer plenty without one.
Leopard shark
The spotted adult zebra shark is usually called a leopard shark in Thailand. Its long tail and sandy colouring are worth noticing on an Andaman encounter.
Manta ray
Koh Bon is a notable manta stop on some extended Similan routes. It is a separate itinerary choice, and an encounter remains a matter of conditions and luck.
Moray eels
A head tucked into a reef crevice can be as captivating as an animal in the blue. Several moray species occur here; the illustration represents the group.
Napoleon wrasse
This substantial reef fish has a distinctive forehead and thick lips. Operators document it on northern routes around Koh Bon and Surin.
Barracuda
A sleek silver silhouette to watch for around the granite boulders and in open water. A passing school can change the whole feel of a dive.
Representative illustrations, not photographs of local sightings. New whale shark, leopard shark, manta artwork was generated with AI for Divezone in November 2026; other illustrations are reused from Divezone’s existing collection.
Coral condition varies by site and over time. Good buoyancy leaves room for the reef’s smaller residents: nudibranchs, shrimps and other details are often the reward for slowing down.
Diving Safety
If you are planning an upcoming dive trip or travelling to Khao Lak, it is a really good idea to invest in travel insurance for scuba diving, because you never know what could happen and when you might need it (because accidents do happen!). I recommend this diving insurance as they offer worldwide coverage and focus on providing scuba divers a quality insurance and medical assistance service.
Khao Lak diving questions
Do I need a liveaboard to reach the islands?
No. Seasonal day trips serve several offshore destinations. A liveaboard offers more time at sea, while a day boat returns to your mainland accommodation.
Are the local wrecks suitable for a newly certified diver?
Some operators accept less experienced divers on selected local trips, but visibility, current, recent experience and the actual depth must fit the diver. Seachart is a deeper wreck and should not be grouped with introductory diving.
Can my non-diving partner stay ashore?
Yes. A mainland stay lets a companion choose beaches, food, nature visits or a separate snorkelling excursion without committing to a scuba-boat timetable.
Original review: Sally Usher, Khao Lak Dive Centre. Original wreck photographs: Joakim. The useful local observations are retained here with current access and planning qualifications.
Sources and planning references
Local diving programmes · Boonsung condition · Wreck availability and Premchai · Surin reopening · Thailand diving rules · checked 12 November 2026.
Share your Khao Lak experience
Photos Khao Lak
Travel Guide
Now that you know all about the underwater world, you might want to start planning your scuba holiday! Check out our Khao Lak Travel Review for information about how to get there, activities and excursions, where to stay, and more.
Diving Reviews for this region
Dive spots reviews in Khao Lak
Liveaboard Reviews in Khao Lak
MV Pawara
Pawara photo gallery: operator imagery supplied through LiveAboard.com. Photos are undated; the confirmed cabin allocation governs your booking.
The Junk
Three masts, a wooden hull and a history that began with charcoal rather than scuba tanks: The Junk brings a little romance to a Thai diving holiday. The appeal goes well beyond a photogenic silhouette. Eighteen guests share six ensuite cabins, and the
MV Diverace Class E
This is a historical vessel profile, not a bookable liveaboard. DiveRACE confirms that Class E was lost following a fire in April 2025. The former boat’s photographs, description and reader memories are retained below as an archive.
MV Similan Explorer
The following account is retained as an archive. Prices, capacity, facilities, services and wildlife sightings mentioned here should not be used as current booking assurances.
MV Pawara — Archived Review (2016)
This page preserves an earlier Divezone description and its visitor reviews. Cabin layouts, facilities and prices have changed since it was written. The updated Pawara guide covers 2026–2027 cabin choices, routes, park fees and current trip planning.
MV Hallelujah
Historical Hallelujah photographs: LiveAboard.com and the existing Divezone gallery. These images do not establish present operating condition.
MV Sea of Fantasy I
Original Divezone photo credit: Luna Diving Thailand. Undated historical image.
MV Giamani
A small group, five cabins and plenty of Andaman possibilities: MV Giamani is a boat for making a trip your own. The shaded dining area, air-conditioned saloon and camera facilities give this steel-hulled vessel a sociable, practical character. The ope
MV Thailand Aggressor
Boat photographs: LiveAboard.com partner gallery, labelled 2024 in the supplied files.
Best dive sites in Khao Lak, includes Richelieu Rock and Koh Tachai, with some amazing pinnacles!!!
iv been 5 times in khao lak , the best thing is liveaboard. if you have at least 50 logged dives.
i rekomended : sea dragon divecenter.
they have day trips / liveaboard.
Boonsung Wreck is awesome, one of my most favourite dive sites!! I can’t wait to go there again and check out the Orang-Utan Crab again!!