What to do
- 1
- 2
- 3
- 4
Treat the official rules as the starting point
Before entering the water, read the current DMCR guidance and listen to the responsible operator's site briefing. The three supported visitor rules here are simple: do not touch or step on coral or marine life, do not feed marine animals, and do not leave litter in the sea.
The rules apply to conduct, not to a promise about the excursion. They do not establish that coral is present at the selected location, that wildlife will be visible, that the water is suitable, or that the operator can meet every safety or accessibility need.
Keep your body and equipment off marine life
Do not use coral or another living surface as a handhold, footrest or place to stand. Follow the operator's instructions for maintaining distance, and stop or reposition before a fin, camera, bag or other equipment can make contact.
A photograph, closer view or momentary loss of position does not create an exception to the no-contact rule. If conditions or personal control make contact difficult to avoid, leave that area and ask the responsible guide for the appropriate next action rather than improvising.
Do not feed fish or other marine animals
DMCR states that visitors must not feed marine animals. Do not carry food into the water for that purpose, accept feed from another participant, or treat an operator's offer as proof that feeding is permitted under the current official guidance.
This answer does not rank animal encounters or promise a sighting. The supported decision is only how to avoid changing natural behavior through feeding. Questions about a species, protected area or research activity need a current answer from the responsible authority.
Bring every item back out
Keep packaging, drink containers and loose personal items secured before boarding or entering the water. DMCR's rule is not to leave litter in the sea, so anything brought to the activity should return with the visitor or go into the operator's designated waste route.
If an item is lost overboard, tell the operator instead of creating another hazard by pursuing it without direction. This page does not claim that a particular boat supplies storage, waste bins or retrieval equipment; confirm those operational details with the selected provider.
Separate conduct from site and safety checks
Following the three conduct rules does not establish safe weather, suitable water, emergency support, accessibility or operator competence. Check current marine weather and warnings, and ask the actual operator about the site, supervision, equipment and cancellation decision before departure.
No penalty is reproduced here. Legal text and enforcement can change and require direct review of the current authority material. The page also makes no Koh Larn-specific coral, wildlife or habitat claim; use it wherever the DMCR conduct rules apply.
Evidence
Sources
2 dated records support the material facts on this page.
- กฎหมายและมาตรการการดำน้ำเพื่อการอนุรักษ์ปะการัง (opens in a new tab)
Department of Marine and Coastal Resourcesofficial governmentChecked
- ทส. ออกมาตรการเข้ม แก่ผู้ประกอบการท่องเที่ยวดำน้ำ ลดผลกระทบต่อปะการัง (opens in a new tab)
Department of Marine and Coastal Resourcesofficial governmentChecked