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Offshore wreck and artificial reef near Nual Beach

HTMS Mattaphon Shipwreck Dive Site

HTMS Mattaphon is an offshore wreck-diving site near Nual Beach, Ko Lan, with a former landing craft and surrounding artificial-reef structures.

Ko Lan, Chon Buri Reviewed 22 October 2026
Site type Offshore wreck and artificial reef
Location Near southern Ko Lan / Nual Beach
Historic sinking 2012, according to local dive operators
Overview

About HTMS Mattaphon Shipwreck Dive Site

HTMS Mattaphon, also written Mataphon or Mattapon, is a wreck-diving site offshore from Ko Lan’s southern Nual Beach area. Local dive operators describe a former tank landing craft deliberately sunk as an artificial reef in 2012. The site includes the wreck and nearby concrete reef structures. Its map point is offshore, so it is a location reference rather than a pier or walk-in dive shop. Operator descriptions place upper parts of the wreck at shallower depths and the seabed at roughly 20–23 metres. Reported depths vary with the reference point and conditions; the actual planned profile must be agreed with the operator for the diver’s qualifications and current sea conditions. Do not read a site depth as an invitation to enter a wreck. Ask a dive operator whether this site is on the proposed itinerary, which experience and qualifications it requires, and what guiding, equipment, boat transfer, charges and cancellation conditions apply. Agree the actual departure and meeting point separately from the offshore pin. Visibility, currents, marine life and access can change, so the day’s decision belongs with the trip’s responsible team.

Identify the site

Wreck and reef structures

Local operators describe the landing-craft wreck and nearby concrete structures as parts of the site.

Meet on shore as arranged

Confirm the operator’s actual boat departure and meeting point; the offshore pin is not a visitor entrance.

Plan your visit

Practical information

Check the latest operating details with the venue before travelling.

Contact and directions

Offshore from Nual Beach, southern Ko Lan, Ko Lan, Chon Buri, Thailand

HTMS Mattaphon Shipwreck Dive Site map Open full map
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Helpful related information

Information you can verify

Important details are reviewed against the organisation’s own information and other accountable sources.

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Current location: Ko Lan (Koh Larn)

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