Phuket

Thailand's largest island, in the Andaman Sea off the country's west coast and joined to the mainland by the Sarasin Bridge, which is why, unlike most Thai islands, you can drive to it and why it has an international airport rather than a ferry pier.

It is also Thailand's most developed beach destination, and that cuts both ways: excellent infrastructure, direct long-haul flights and every standard of accommodation, alongside congestion and a west coast that is largely built up. The island is big enough that the difference between beaches is substantial — Patong and the north-western bays are effectively different holidays.

The practical case is access. Phuket is the gateway to the Andaman: Phang Nga Bay's limestone karsts, the Similan Islands, Krabi, Koh Phi Phi and Koh Lanta are all reachable, and many visitors use Phuket as a base rather than a destination.

On the island itself, the strongest argument is Phuket Town, which most beach visitors skip. Its old quarter is Sino-Portuguese: shophouses and mansions built on tin-mining money, now restored, with a food culture that earned the island a UNESCO Creative City of Gastronomy designation. It looks and tastes nothing like the beach strip.

• Phang Nga Bay by longtail or kayak. Limestone towers rising straight out of shallow green water, with sea caves and hongs — collapsed cave systems open to the sky — reachable only at the right tide. Going early avoids the mid-morning convoy from the big boats.
• Phuket Old Town. Sino-Portuguese shophouses, the Sunday walking street, and the island's best food. Half a day minimum.
• The north-western beaches. Nai Thon, Nai Yang and Mai Khao are long, quiet and mostly undeveloped, within Sirinat National Park. The opposite end of the island in character from Patong.
• Diving or snorkelling in the Similans, a day or liveaboard trip north-west, generally regarded as the best in the Andaman. The islands close seasonally for environmental recovery, so check dates before planning around them.
• Big Buddha and the southern viewpoints. Promthep Cape at sunset is the classic, and the Karon and Kata viewpoints are the better ones.
• A cooking class or a market morning. Phuket's food is a distinct southern Thai and Hokkien Chinese blend rather than generic Thai.

November to April, the dry season.

Patong is the centre of the nightlife and the busiest beach; convenient and loud. Kata and Karon are calmer versions of the same formula, good for families and surfable in the monsoon months. Kamala and Surin are quieter and more upmarket.

Nai Harn and Rawai in the south are residential and less touristed, with good food and a local feel. The north-west: Nai Thon, Nai Yang, Mai Khao: is the quietest coast, close to the airport, with long empty sand and little nightlife. Phuket Town itself is the option for culture and food over beach, and is far better value.

Phuket International Airport (HKT) sits at the northern end of the island and receives direct flights from across Asia, seasonal long-haul services, and constant domestic connections from Bangkok. Transfer time to the main beaches ranges from about 20 minutes for the northern bays to an hour or more for Patong, Kata and the south.

Because the island is bridged, it is also reachable by long-distance bus from Bangkok and by road from Krabi and Phang Nga. Ferries connect to Koh Phi Phi, Krabi and Koh Lanta from Rassada Pier, with reduced or suspended services in the monsoon months.

Phuket is bigger than it looks — roughly 50 km north to south — and public transport is limited. Local songthaews run between Phuket Town and the beaches but not usefully between beaches.

Ride-hailing apps operate and are the cheapest reliable option, though as elsewhere in Thailand there is friction with local taxi operators in some areas. Metered taxis exist; agreeing the fare or insisting on the meter before setting off avoids the usual argument.

On scooters, read the official advice before you rent. UK government guidance notes that scooters for hire in tourist areas "are often unregistered and cannot be used legally on a public road", and that driving without a valid licence can invalidate your travel insurance. It also warns specifically against handing over your passport as a rental deposit, a practice used to support inflated damage claims by some motorcycle and jet-ski operators.

Phuket's cooking is southern Thai crossed with Hokkien Chinese, a legacy of the tin-mining migration that also built the Old Town. Mee Hokkien (fried noodles in broth), moo hong (slow-braised pork belly), o-tao (an oyster and taro fry-up) and roti from the Muslim south are the dishes to look for, and are far easier to find in Phuket Town than on the beach strip.

The island holds the Vegetarian Festival in the ninth lunar month, a Taoist observance with street processions and body-piercing rituals that is unlike anything else in Thailand and draws large crowds.

Standard Thai etiquette applies and is taken seriously: cover shoulders and knees at temples, remove shoes where indicated, never touch anyone's head, and treat images of the monarchy with respect — lèse-majesté laws are enforced.

Phuket is more expensive than most of Thailand and cheap by the standards of comparable beach destinations elsewhere. The spread is wide: hostels and street food at one end, international resorts at the other.

The main cost drivers are accommodation standard and location — beachfront in the high season commands a large premium — and organised day trips, which add up quickly. Eating at markets and in Phuket Town rather than on the beach strip makes a substantial difference. Airport transfers are disproportionately expensive relative to other local transport, so share or pre-book them.

Swimming safety is the single most important thing on this page. UK government advice records that "people have drowned in strong riptides" in Thailand, that lifeguards operate at designated beaches with a flag system, and that travellers should follow warning signs, "especially red flags". On Phuket's west coast the risk peaks during the May-to-October monsoon, when rips on Patong, Kata and Karon are genuinely dangerous. If a red flag is flying, do not enter the water — every year people do and some do not come out.

Jellyfish also come close to shore particularly during the rainy season from May to October.

The monsoon runs roughly May to October, bringing heavy rain, rough seas, reduced ferry services and the best surf. November to April is drier and calmer, and busier and more expensive as a result.

Never leave your passport as a deposit for a scooter or jet ski. This is explicitly warned against in official advice because of damage-claim disputes.

Four days. Two days on your chosen beach, one day in Phang Nga Bay, one day in Phuket Old Town.

A week. The above plus a diving or island day trip, a southern viewpoint afternoon, and a day doing nothing. A week is enough to see the island properly without treating it as a checklist.

Phuket as a base, ten days or more. Use it for the flights and the infrastructure, then take ferries onward to Koh Yao Noi, Krabi or Koh Lanta, all of which are quieter. This is how many repeat visitors use the island.

If you only have a few days and want quiet, stay north-west and skip Patong entirely.