Cannabis in Koh Tao 2026

Koh Tao is a tiny island in the Gulf of Thailand, part of Surat Thani province, known worldwide as one of the cheapest and most popular places to get scuba diving certified. With a permanent population of only around 2,500 that swells to many times that number with tourists and dive instructors, the island packs 24 dispensaries, 2 farms, and 26 total cannabis listings into its 21 square kilometers. That gives Koh Tao one of the highest dispensary-to-resident ratios in all of Thailand.

Cannabis culture on Koh Tao reflects the island’s laid-back dive-and-chill lifestyle. Most shops double as social hangouts where divers, backpackers, and island regulars gather after a day underwater. The scene is casual and community-driven, with several shops offering games, food, and drinks alongside their cannabis menu. Unlike the party-heavy scenes on Koh Phangan or Phuket, Koh Tao’s cannabis market caters to people looking to relax between dives and enjoy the slow island pace.

The June 2025 regulatory changes introduced the PT 33 prescription requirement, but Koh Tao has no clinics on the island. Visitors need to arrange their prescription before arriving — typically on Koh Samui or Koh Phangan, both a ferry ride away.

Best Dispensaries in Koh Tao

Koh Tao’s dispensaries are highly rated, with several holding perfect 5.0 scores. Here are the top shops by reviews:

• Green Nation Dispensary — The island’s most-reviewed dispensary with a perfect 5.0 rating from 240 reviews. Located on Green Street, known for consistent quality and knowledgeable staff.
• Buds Bar n Grill — Rated 4.9 from 226 reviews. Combines a full food menu with cannabis, making it a popular all-in-one hangout spot.
• Weeden — Perfect 5.0 from 222 reviews. One of the island’s most trusted shops with a loyal following among returning visitors.
• BEYOND CANNABIS SAIREE — Rated 4.8 from 185 reviews. Prime location on Sairee Beach, the island’s main tourist strip.
• MR.BONGG CHILL ZONE — Perfect 5.0 from 94 reviews. A gaming and smoke lounge where you can play console games while enjoying your purchase.
• Ganja Cannabis & Snooker Club — Perfect 5.0 from 80 reviews. Pool tables, bar drinks, and quality cannabis in one venue.

Chain & Multi-Location Shops

• High Siam Koh Tao — Part of the High Siam chain with locations across Thailand. Rated 4.9 from 82 reviews. Offers standardized quality and pricing that travelers familiar with the brand will recognize.
• Nutta Cannabis — Operates two locations on the island, giving visitors options depending on which part of Koh Tao they are staying in.

Budget Options

Koh Tao’s small size and high competition among 24 dispensaries means there are deals to be found. Budget-tier cannabis starts at around 150-200 THB per gram at several shops. MR.BONGG CHILL ZONE and Ganja Cannabis & Snooker Club are known for fair pricing, and buying from the island’s two farms directly can bring costs down further. Ask about bulk pricing if you are staying for an extended period — many shops offer discounts for purchases over 5 grams.

Area Breakdown

• Sairee Beach — The main tourist strip on the west coast has the highest concentration of dispensaries. BEYOND CANNABIS SAIREE, Green Nation Dispensary, and several other shops line the beach road. This is where most visitors stay and where the island’s nightlife is centered. Expect slightly higher prices but maximum convenience.
• Mae Haad — The pier area where ferries arrive and depart. Several dispensaries here catch arriving visitors. Practical location for stocking up when you land or before you leave. Prices can be competitive as shops vie for ferry traffic.
• Chalok Baan Kao — The quieter southern bay attracts divers and those seeking a mellower atmosphere. Fewer dispensaries but a more relaxed vibe. Good for visitors staying at dive resorts in the south of the island.

Cannabis Farms in Koh Tao

Koh Tao is home to two cannabis farms, a surprising number for such a small island:

• Natural Artist Farm — Rated 5.0 from 139 reviews. Located near Sairee, this farm-dispensary lets visitors see plants growing and buy direct. Known for organic growing methods and an artistic, creative atmosphere. One of the highest-rated farms in southern Thailand.
• Koh Tao Blue Gelato Farm — Rated 4.5 from 42 reviews. An organic farm specializing in the Blue Gelato strain among others. Offers farm-direct pricing and a chance to see island-grown cannabis up close.

Buying direct from farms typically saves 20-30% compared to dispensary prices and ensures the freshest product available on the island.

Getting a PT 33 Prescription

Koh Tao has no clinics offering PT 33 consultations. This is the most important thing to plan before visiting. Your options:

• Koh Samui — The largest nearby island has 10 clinics with English-speaking doctors. Get your prescription there before taking the ferry to Koh Tao (approximately 2 hours by high-speed catamaran).
• Koh Phangan — Has 5 clinics and is a shorter ferry ride from Koh Tao (about 1-1.5 hours). A good option if you are island-hopping northward through the Gulf.
• Chumphon — If arriving from the mainland via Chumphon, check for clinics there before boarding the ferry (about 2-3 hours to Koh Tao).

Your PT 33 prescription is valid at any dispensary in Thailand, so a prescription obtained on Koh Samui or Koh Phangan works on Koh Tao without any issue.

Price Guide

Tier	Price Range (THB/g)	Where to Find
Budget	150-250	Various shops, bulk deals
Mid-range	250-400	Green Nation, Buds Bar n Grill, Weeden
Premium	400-600	BEYOND CANNABIS, High Siam
Farm-direct	150-300	Natural Artist Farm, Blue Gelato Farm

Prices on Koh Tao run slightly higher than the mainland due to transport costs to the island, but competition among 24 dispensaries on such a small island helps keep markups in check.

How to Get There

Koh Tao is accessible only by boat. There are no flights to the island.

• From Chumphon — The most direct mainland route. High-speed catamarans take about 2-3 hours. Lomprayah and Songserm operate daily services. Chumphon is connected to Bangkok by train (8-10 hours overnight sleeper) and flights (1 hour).
• From Koh Samui — High-speed catamaran takes about 2 hours. Multiple daily departures. Convenient if flying into Koh Samui airport.
• From Koh Phangan — The shortest hop, about 1-1.5 hours by ferry. Easy to combine Koh Tao with a Koh Phangan visit.
• From Bangkok — The most common route is an overnight train or bus to Chumphon, then the morning ferry. Combined bus-ferry tickets are available from Khao San Road travel agencies and online.

What to Know Before You Visit

• Diving safety — Do not consume cannabis before or between dives. Nitrogen narcosis risks increase with any intoxicant, and dive operators will refuse entry to anyone visibly impaired. Save it for the evening after your dives are done.
• Small island, small community — Koh Tao has a village feel. Dispensary staff, dive instructors, and restaurant owners all know each other. Be respectful and you will be welcomed warmly.
• No driving under the influence — The island has limited roads and most people get around by scooter. Driving under the influence is illegal and dangerous on Koh Tao’s steep, winding roads. Walk or take a taxi.
• No clinics on the island — Beyond the PT 33 issue, Koh Tao has very limited medical facilities. If you are new to cannabis or have health concerns, start with low doses. The nearest hospital is on Koh Samui.
• Weather — The Gulf islands have a different monsoon season than the Andaman coast. The wettest months are October-December. Peak season is January-April when seas are calm and visibility is best for diving.