Thailand , properly.

Most first-time Thailand trips work best at 10 to 18 days. A week covers Bangkok + a short add-on; 12 days lets you do Bangkok + the north or Bangkok + the south properly; 18+ days is when the full country (Bangkok + Chiang Mai + south) becomes possible.

Bangkok + Chiang Mai over 10–12 days is the strongest first-time shape. Four nights in Bangkok for temples, food, and one day trip; four to five in Chiang Mai for old town, ethical elephants, and the slower hill rhythm. Optional Pai add-on if you have 14+ days.

Only if your trip is 14+ nights — otherwise the Bangkok flight, the southern flight, the resort transfer, and the time-to-decompress eat your buffer. A short trip is stronger with one quality region than two compressed ones.

November through February is the cool-dry season and the easiest window for first trips. December and January are peak Christmas / New Year — book accommodation 2–3 months ahead. March through May is hot (often 35°C+); June through October is the rainy season but most rain falls in short afternoon bursts.

The Andaman side (Phuket, Krabi, Phi Phi) is rainiest May through October; the Gulf side (Koh Samui, Koh Phangan, Koh Tao) is rainiest October through December. They're offset, so you can usually find good beach weather somewhere in Thailand year-round.

Almost always fly — internal flights on Bangkok Airways, AirAsia, and Thai Smile are inexpensive (often $40–80) and save half a day each direction versus trains. The exception is the Bangkok → Chiang Mai overnight train, which is genuinely scenic and sleeper-comfortable; book second-class sleeper or first-class.

The BTS Skytrain and MRT subway handle most central routes. Use the Chao Phraya river ferries for the old-city temples (the Grand Palace and Wat Pho are easier by river than road). Bolt and Grab handle taxi-style rides; tuk-tuks for short hops only — agree the fare before getting in.

In peak season (December–January) yes, especially Phuket → Phi Phi and Surat Thani → Koh Samui. In shoulder season same-week is fine. Book on 12Go Asia for honest pricing; avoid the touts at the pier who upcharge identical tickets.

Phuket is the largest, busiest, most resort-developed, and easiest to fly into. Krabi has dramatic limestone scenery and Railay Beach but needs more boat travel. Koh Samui is calmer, more polished, and works year-round (offset monsoon). For a one-island trip, pick Phuket for infrastructure, Krabi for drama, Samui for slower pacing.

Yes if you have 14+ nights and want a meaningful pacing slowdown. Pai is three hours by minivan north of Chiang Mai (the road has 762 curves — not for the motion-sick). Three nights is the right scale; longer if you're decompressing. Skip it on shorter trips.

Ayutthaya is the easier day trip from Bangkok (1.5 hours by train or organised tour) and worth a half-day. Sukhothai is older, more dispersed, and works better as a longer detour between Bangkok and Chiang Mai with an overnight — it doesn't read as a day trip.

English works in most Bangkok, Chiang Mai, and beach-resort tourist areas. Outside those, English coverage drops sharply. Learning sawasdee (hello), kop khun (thank you), and how to count to 10 is appreciated and useful in markets. A translation app handles the rest.

Thailand is one of the most affordable popular destinations in Asia — Bangkok hotels run 30–50% cheaper than Tokyo or Singapore, street food is excellent and cheap, internal flights are sub-$100 for most routes. Resort beaches (Phuket, Koh Samui) are noticeably more expensive than the urban centres.

Less than the West but more than Korea or Japan. Round up to the nearest 20 baht for casual meals; 10% at nicer restaurants if no service charge is added; small notes (20–50 baht) for taxis on top of the meter fare. Tipping is appreciated but not socially required.