Koh Tao

Koh Tao translates to Turtle Island, named for both the sea turtles that still visit Shark Bay and the island's vague turtle shape when viewed from Koh Phangan. It sits in Surat Thani Province in the Gulf of Thailand and is officially the smallest of the three main Gulf islands. The dive culture here is the backbone of everything.

Koh Tao is one of the leading dive education centres in the world, with over 50 dive schools on an island you can walk across in a couple of hours. That context shapes the whole social scene: people are here to get their PADI, drink Chang on the beach, and watch fire shows at night. The island also has a strong environmental community consciousness.

Dive shops regularly run Dive Against Debris cleanups, and the annual Koh Tao Festival in mid-June centres heavily on sustainability and conservation. Loy Krathong and Songkran are both celebrated with genuine local enthusiasm. Songkran in April is basically a full-island water fight with giant hoses.

Bring a waterproof bag and leave your passport at the hotel.

The 'wai' greeting (a slight bow with palms pressed together) shows respect. You don't need to initiate it with vendors, but returning one is always appreciated.. Never point your feet at someone or prop them up facing another person.

Feet are considered the lowest and dirtiest part of the body.. Remove shoes before entering any home, many guesthouses, and most temples.. Losing your temper publicly is a serious faux pas.

Keep it calm, keep smiling, and you'll get further faster.. Tipping is not expected at most local Thai spots. It is appreciated at dive shops and for massage therapists..

The Thai royal family is held in the highest regard. Avoid any negative commentary, even offhand remarks.. Coral-safe sunscreen matters here.

Sunscreens containing oxybenzone or octinoxate are sold everywhere but damage the reefs Koh Tao depends on. Bring reef-safe SPF from home or buy it on the island.. ATMs dispense baht but charge foreign card fees.

Exchange rates in Bangkok are better than on the island. Carry enough cash because smaller bars and street vendors almost always prefer it.

Koh Tao is generally safe and most trips are completely incident-free. The 2014 murder case that generated the 'Death Island' nickname is a decade old, and statistically, tourist deaths on the island are no higher per capita than comparable destinations. That said, the real risks are practical and very preventable.

Scooters are the biggest hazard. The island has steep hills, sandy corners, and roads that get slippery fast. Many rental shops offer little to no insurance, and your travel policy may not cover accidents if you do not hold a valid motorcycle license. Before you accept any scooter, photograph every existing dent and scratch. Never hand your passport over as collateral, which some rental shops will try to request. And do not drink and ride. Most accidents on Koh Tao involve alcohol. Full stop.

For anything serious medically, you will need a boat to Koh Samui or a flight to the mainland. Factor that into your thinking before going deep.

Petty theft happens. Keep phones and valuables out of unlocked scooter compartments and off unattended beach towels. Use the safe in your room.

Mosquitoes carry Dengue Fever on Koh Tao. Use repellent, especially at dawn and dusk. Repellent and coils are sold at 7-Eleven and local shops across the island.

Fake or adulterated alcohol has been an issue across Thailand. If the price seems suspiciously cheap, trust that instinct.

Dive safely. Stick to reputable dive centers with current certifications, follow all briefings, and do not push your limits underwater. Dehydration causes the majority of diver sickness call-outs on the island, so drink water before getting on the boat.

There is no airport on Koh Tao. Every arrival is by boat, and that is just the deal. The fastest and most budget-friendly route from Bangkok is flying AirAsia to Chumphon Airport and taking the Lomprayah high-speed ferry, which takes 1.5 to 2 hours and costs around 400-800 THB. Combo tickets (flight plus ferry) are easy to book through agents and online. From Koh Samui, ferries run 1.5 to 2.5 hours and cost around 750-900 THB. From Surat Thani it is 3-5 hours by day ferry and up to 8 hours on a night boat.

On the island, a songthaew (covered pickup truck) from Mae Haad pier to Sairee Beach runs about 100 THB per person. Taxis are expensive for short distances, running 400-600 THB per ride. Renting a scooter for 150-350 THB per day is the practical choice for most people, though the roads and hills catch out beginners. Walking is entirely viable within Sairee and Mae Haad. For remote beaches like Tanote Bay, you genuinely need wheels or a longtail boat (100-300 THB per person).