This Pattaya guide uses ‘Coral Island’ for Koh Larn — the island about 7 km offshore. Here is what that visitor label does and does not promise, plus the verified public-ferry route.
On this Pattaya guide, “Coral Island” means Koh Larn. Pattaya City places Koh Larn about 7 km offshore. Because the nickname is not unique in Thailand, confirm Koh Larn and the landing point before paying. The operator-posted public-ferry fare was 40 baht per person when checked on 23 August 2026; buy at Bali Hai Pier A and choose Na Baan or Tawaen before boarding.
Read the label carefully: this publication uses “Coral Island, Pattaya” for Koh Larn. The nickname is not unique in Thailand and is not a promise about visibility, reef condition, an activity or a landing point.
The local place name is Koh Larn (เกาะล้าน). This page retains Coral Island, Pattaya as a visitor and search label, not as a formal or unique place name. A listing using it should identify Koh Larn, the exact landing point and what the package includes.
English transliteration varies. Official Tourism Authority of Thailand pages use both Koh Lan ↗ and Ko Lan ↗ for this same island. This publication standardizes on Koh Larn; it does not create duplicate destinations or imply that one spelling is officially preferred.
The label is not a condition report. Coral, visibility, marked swimming areas and operator access can all differ by location and day. Choose from the supported beach records and check current notices before entering the water.
DMCR visitor guidance says not to touch or stand on coral, feed marine life or leave litter. Its Koh Larn management record also documents repairing mooring buoys so boats can moor instead of anchoring on coral. The guide does not promise a sighting or visibility level. Stay inside marked zones, clear of boat lanes, and use the snorkeling guide as planning context rather than a live condition report.
Important distinction: an official record of coral, restoration or cleanup proves that the habitat is being surveyed or managed. It does not prove what a visitor will see, that a beach is suitable for snorkeling, or that conditions are safe today.
5 February 2026
DMCR, Pattaya City and the regional Marine Office inspected Sea Walker and restaurant-boat activity. The record describes defined operating and mooring areas away from coral, wastewater controls, and standards for diving, air-supply and life-saving equipment.
Boundary: operator-by-operator licensing was described as a next step. This does not certify any provider now.
2 May 2026
A preliminary DMCR survey covering both the Koh Phai and Koh Larn archipelagos reported no bleaching at survey time, mostly very-good offshore reefs and nearshore reefs ranging from moderate to damaged, with sediment identified as the main pressure.
Boundary: the results are combined regional context—not a Koh Larn-only, beach-level or current visibility report.
20 July 2026
DMCR recorded 20 volunteer divers recovering 58 kg of debris around the Koh Larn island group, mainly net fragments, glass bottles and plastic bags. Officials also repaired mooring buoys to encourage mooring instead of anchoring on coral.
Boundary: this is a dated intervention, not proof of present cleanliness, reef health or access.
DMCR also recorded a 29 May event at two locations: Haad Kere on Koh Larn and the Pattaya beachfront. It reported combined event totals of 83 kg of underwater debris, 200 hard-coral branches and 140 soft corals, but did not split those figures by site. This guide therefore does not assign the combined totals to Koh Larn alone.
Ao Sangwan: DMCR station TB2026050000817 classified less than 1% bleaching / “no bleaching found” in a visual survey on 14 May 2026. Thong Lang: DMCR recorded coral and associated organisms settling on larval-settlement bases in a 4 March 2026 survey of bases placed in 2025. Both are dated observations; neither establishes current access, visibility, swimming safety, snorkeling quality or island-wide reef health.
DMCR records that a 3–4 July 2026 multi-agency activity placed 3D-printed structures designed as settlement surfaces for coral larvae on a Koh Larn beach. The record proves the dated activity and intended design; it does not prove that larvae settled, that coral survived, that a reef recovered, which beach visitors can access, or what conditions are like now.
Get the legal or trading name and ask for the current authorization covering the exact activity. A reseller advert is not a licence.
Ask where the boat moors and where the activity happens. The route and operating area should stay clear of coral and boat traffic.
For an underwater product, confirm the air supply, life-saving equipment, responsible guide, health limits, insurance and emergency procedure.
No operator can guarantee visibility, reef condition or wildlife. Get the landing point, duration, inclusions, total and weather terms in writing.
For the full commercial comparison, use the tour or independent-trip checklist. For entering the water, use the condition-first snorkeling guide.
Buy at the Bali Hai Pier A counter. The operator listing checked on 23 August 2026 showed 40฿ per person and separate Na Baan and Tawaen routes. See the dated timetable and boarding guide.
Packages differ by pickup, vessel, landing point, beach time, meal, activities and return terms. Compare the exact written inclusions, named operator and current authorization rather than assuming every “Coral Island” product is equivalent. Use the tour checklist.
New to the island? Start here, then browse the supported beach records or compare their evidence fields side by side.
On this Pattaya guide, “Coral Island” means Koh Larn (เกาะล้าน), the island about 7 km offshore. Because the nickname is not unique in Thailand, confirm the named island and landing point on every ticket or package.
SourcesPattaya City briefing, 2024 edition ↗
Link to this answerYes. This publication uses Koh Larn; official Tourism Authority of Thailand pages also use Koh Lan and Ko Lan for the same Pattaya island. These are English transliteration variants, not separate destinations.
SourcesTourism Authority of Thailand — Pattaya destination (‘Koh Lan’) ↗Tourism Authority of Thailand — Eastern Thailand destination (‘Ko Lan’) ↗
Link to this answerYes, official DMCR records document coral survey, restoration and protection work around the Koh Larn island group. They do not promise healthy coral, clear visibility or access at a particular beach today. Never touch or stand on coral or feed marine life.
SourcesDMCR — Koh Phai and Koh Larn archipelago coral survey, 2 May 2026 ↗Department of Marine and Coastal Resources visitor rules ↗
Link to this answerA preliminary May survey covered both the Koh Phai and Koh Larn archipelagos, so its condition statements cannot be assigned to one Koh Larn beach. July records describe settlement structures, 58 kg of underwater debris recovered around the island group, and mooring-buoy repairs. These are dated management records, not live visitor-condition reports.
SourcesDMCR — Koh Phai and Koh Larn archipelago coral survey, 2 May 2026 ↗DMCR — Koh Larn coral-settlement structures, 3–4 July 2026 ↗DMCR — Koh Larn archipelago underwater cleanup, 20 July 2026 ↗
Link to this answerNo. A 5 February 2026 DMCR record described operator-by-operator licensing as a next step and set expectations for activity areas, wastewater and safety equipment. Ask the named operator and responsible authority for current authorization.
SourcesDMCR — Koh Larn marine-activity oversight, 5 February 2026 ↗
Link to this answerUse the public-ferry counter at Bali Hai Pier A. The operator timetable checked on 23 August 2026 listed routes to Na Baan and Tawaen at 40฿ per person. Choose the landing point before boarding and leave margin for the counter cutoff and return.
SourcesPattaya–Koh Larn ferry operator ↗Pattaya Data Platform — Koh Larn passenger-boat route categories, 2025 ↗
Link to this answerIt is a straightforward day trip when the posted ferry routes, return time and current marine conditions suit your plan. The timetable checked on 23 August 2026 serves Na Baan and Tawaen from Bali Hai Pier A. Pick one arrival, one main beach and a return with margin.
SourcesPattaya–Koh Larn ferry operator ↗Thai Meteorological Department shipping forecast ↗
Link to this answer