Thonburi

Bangkok's forgotten west bank — canal life, dawn temples, and the last neighbourhoods where nobody speaks English on the bus.

Thonburi was the capital of Siam for 15 years before Bangkok existed and then it lost, and it has been quietly nursing that grievance ever since. The west bank of the Chao Phraya is a completely different city from Sukhumvit — a warren of khlongs (canals), wooden houses on stilts, floating produce vendors, and temples that hardly any tourist reaches because the taxi drivers will refuse the fare during rush hour. If you want to feel like you’ve actually left the international-city version of Bangkok, cross the river.

The area covers a huge sprawl — Bang Yi Khan in the north down to Wongwian Yai in the south — but the traveller-relevant zone is a strip from Wat Arun (which is technically Thonburi, though everyone forgets) south through Kudi Chin, the historic Portuguese-Chinese neighbourhood, and along the west bank to the boutique hotels around Klongsan and IconSiam. IconSiam itself is a monster luxury mall from 2018 that changed the west bank overnight — love it or hate it, it's now the transport hub, and the free shuttle boats to Sathorn (BTS) run every 15 minutes.

Food here is the reward for making the trip. Khunang Puu Wongwian Yai does the best crab curry in the city for $9 a plate; the floating market at Taling Chan (weekends only, 8am-4pm) is where locals go rather than the tourist trap at Damnoen Saduak; and Kudi Chin has 200-year-old Portuguese-descended cake shops selling khanom farang $0.50 apiece. The dawn call from Wat Prayoon carries across the water. Longtail boat tours through the small canals cost $25 for two hours and are the single most-worth-it thing to do in Bangkok.

Suits: repeat visitors, photographers, anyone who's done the Grand Palace circuit and wants to see how the other 95% of the city actually lives. Skip if: you need nightlife, you’re only here two nights, or you find slow river commutes stressful. There is one BTS line (Gold Line, three stops) and one MRT line that just opened — mostly you’re on boats and buses.

Where to sleep

The three viable clusters: (1) Wat Arun/Kudi Chin — historic, atmospheric, boutique places like Sala Rattanakosin's Thonburi outpost or Praya Palazzo (technically across the river but arrives here by ferry) at $80-160. (2) Klongsan/IconSiam — modern high-rises with river views, everything from Millennium Hilton at $120 to Avani+ Riverside at $180, plus their free shuttles solve the transport problem. (3) The old canal neighbourhoods further west — homestays and guesthouses at $30-50, deep local flavour but you’ll need Grab (Thai Uber) for everything. Avoid the mid-range chain hotels near Wongwian Yai station — they’re cheap ($40) but the area is unremarkable and BTS Gold Line is short. Always ask if a river shuttle boat is included; it usually is at the bigger properties, and it saves you $10-15 a day in taxis.

The essentials

Wat Arun to Kudi Chin riverside walk (4 km)

Start at Wat Arun (arrive by cross-river ferry from Tha Tien), circle the temple grounds and exit onto Wang Doem Road heading south. Follow the riverside path past small boat repair yards and stilt houses to Santa Cruz Church at the heart of Kudi Chin. Explore the alleys, stop at Thanusingha bakery, then continue south along the riverside to Wat Prayoon (worth entering, free, with a small turtle pond) and out to Memorial Bridge, where you can walk across back to the east bank.

Getting there & around

From Suvarnabhumi: Airport Rail Link to Phaya Thai (30 min, $1.30), BTS to Saphan Taksin (20 min, $1.30), then the free IconSiam shuttle boat (15 min) or Chao Phraya Express to Klongsan. Total roughly 90 min, $3. From Don Mueang: taxi $12-15 including tolls, 45 min in light traffic. Inside Thonburi you’ll use a mix: Chao Phraya Express boats up and down the river ($0.50-1.50), the Gold Line BTS (Krung Thonburi to Klongsan, three stops, $0.50), cross-river ferries at every major pier ($0.15), longtail charters for the small canals, and Grab or taxi for everything else. Do not attempt to drive here — the streets are narrow, one-way, and nothing is where the map says it is.