Koh Lanta Weed & Cannabis Shops 2026 — Saladan, Old Town & the Island Clinic

Koh Lanta has one of the larger island cannabis scenes in the Andaman, and unlike most islands it also has a medical cannabis clinic. That matters, because since 26 June 2025 cannabis flower has been a “controlled herb” under the Thai Traditional Medicine Act. Shops may sell it only to someone holding a PT 33 prescription from an authorised practitioner, and that includes visitors.

Our directory lists 29 cannabis shops, one clinic and two farms on Koh Lanta, from public map data. A listing is not proof of a licence. A shop that follows the law will ask to see your prescription.

How buying cannabis on Koh Lanta works

1. Consult at a clinic. Cloud 420 Medical Cannabis Clinic on Koh Lanta Yai is the clinic in our listings. Confirm a certified prescriber is working before you go.
2. Get the PT 33 if they prescribe. It sets product, dose and duration, is valid for up to 30 days and requires your passport.
3. Buy within it. Licensed outlets can sell up to 30 days’ supply and, since January 2026, must have a DTAM-trained staff member on site whenever they are open.

Our PT 33 prescription guide has the full detail.

Where the cannabis shops are on Koh Lanta

From the addresses in our listings:

• Saladan. The ferry village at the island’s northern tip has the biggest group, about 20 listings. They include FLY HOUSE, Cannabis bar and Restaurant, Lanta Highland, Weedology and GURU 420. Klong Dao and Long Beach, just south, fall in the same subdistrict.
• Lanta Old Town and the east coast. 420 Highlife Old Town Lanta and Cannabis for life Lanta on Sri Raya Road.
• Southern beaches. Lanta Kush at Kantiang Bay and High Siam in Ko Lanta Yai subdistrict.

All 29 shops are pinned on the map below.

Rules for visitors on Koh Lanta

• Public smoking that bothers others can be fined up to 25,000 THB, with up to 3 months in prison, under the Public Health Act 1992. Beaches and the Old Town pier are public.
• Selling without a prescription is a separate offence under the Traditional Medicine Act, with up to 20,000 THB and up to a year in prison for the seller. The penalties guide lays out both.
• Delivery needs a prescription too. Several Lanta listings mention delivery. That does not remove the prescription requirement.
• CBD under 0.2% THC with Thai FDA registration needs no prescription. See our CBD guide.
• Island-hopping. Do not carry cannabis on boats or flights that leave Thailand. The tourist guide covers travel.

Koh Lanta cannabis FAQ

Can I buy weed on Koh Lanta?

Only with a valid PT 33 prescription. Koh Lanta has a medical cannabis clinic in our listings, Cloud 420, where you can ask for an assessment.

Where are the weed shops on Koh Lanta?

Mostly in Saladan at the northern end, with more in Lanta Old Town, on Sri Raya Road and at Kantiang Bay in the south.

Is there a cannabis clinic on Koh Lanta?

Yes. Cloud 420 Medical Cannabis Clinic on Koh Lanta Yai is in our clinic directory. A practitioner there decides whether to prescribe.

Is weed delivery on Koh Lanta legal?

Only as part of a legal sale, which means a valid prescription first. Delivery without a prescription check is an illegal sale.

Can I smoke on the beach on Koh Lanta?

No. Public smoking that disturbs others can be fined up to 25,000 THB under the Public Health Act.