Sunset cruises, dinner cruises, and day tours on Bangkok's main artery.
Cheap public transport (15–30 THB) that goes downtown–Noi; not a tourist experience but useful for getting around.
Morning or afternoon 2–3 hour cruises, stops at temples and markets, narrated tour; 400–800 THB.
Evening luxury cruises with dinner buffet, live music, 4–5 hours; 1,500–3,000 THB (very touristy).
Rent a longtail boat with driver for 2–4 hours, explore canals (khlongs) off the main river; 1,500–3,000 THB for small group.
Public express boat is authentic and cheap; dinner cruises can feel cheesy; private longtail boat is best value for small group.