From the mountains of the north to the islands of the south — what the country is, when to come, and how it all fits together.
Find a room before you go.
Thailand runs sixteen hundred kilometres from the Burmese border in the north to the Malaysian one in the south, and it changes as you go. The north is mountains, Lanna temples and cool nights around Chiang Mai. The northeast — Isaan — is the big farming plateau, the least visited and the most Thai. The centre is rice country and Bangkok. And the south is the long peninsula with a coast on either side and the islands that most people picture when they hear the name.

That geography is also the practical key to the trip. The seasons differ from region to region, the coasts have opposite monsoons, and the country is long enough that moving between them takes a night train or a short flight. Plan around the map, not around a single weather chart.
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The train is the classic. The southern line runs from Bangkok down the Gulf coast past Hua Hin and Ban Krut to Surat Thani and on to Malaysia; the northern line climbs to Chiang Mai overnight. Sleeper trains are comfortable, cheap and worth doing once for their own sake.
Buses and minivans go everywhere the train does not, and domestic flights are cheap enough that a long north-south move is often better done in the air: Bangkok to Chiang Mai takes an hour and twenty minutes, Bangkok to Phuket a little over an hour.
Ferries and catamarans connect the islands on both coasts, mostly from Chumphon, Surat Thani, Krabi and Phuket. In the high season, book a day ahead; in low season, timetables shrink and some routes stop.


Temples, markets, river boats and the best food in the country. Two days minimum. Bangkok guide →


Gulf and Andaman, opposite seasons, thirteen islands with their own guide. Islands of Thailand →

The quiet coast this site is written from: twelve kilometres of beach and no crowds. Ban Krut guide →

What a bungalow, a city hotel and a pool villa really cost. Best hotels in Thailand →
Two weeks is enough for two regions, not four. A common and good shape is Bangkok for two days, the north or the coast for a week, and an island for the rest — with one internal flight to save a day. If you only have ten days, drop one leg rather than rushing all three.