Depart Ahmedabad early morning; typical flight time ~4½–6h including one connection. Book a flight that lands at Bangkok Suvarnabhumi (BKK) midday to maximise sightseeing time on arrival.
Lumpini Park is calm for a gentle stroll (open 4:30am–9:00pm); Asiatique riverside market is lively at dusk (shops 5:00pm–midnight) with views of the Chao Phraya.
Street‑food tour in Yaowarat — excellent for seafood, grilled skewers and desserts. Food stalls and restaurants are busiest in the evening (roughly 6:00pm–2:00am).
Bangkok’s must‑see: the Grand Palace complex and Emerald Buddha (open 8:30am–3:30pm). Arrive early to avoid the biggest crowds and strict dress code applies.
A 60–90 minute public or private boat trip along the river and small canals offers local life insights and photo opportunities; services run roughly 8:00am–6:00pm.
Early transfer to Suvarnabhumi or Don Mueang for domestic flight to Koh Samui (flight ~1h15m). Aim for a morning flight to connect with mid‑day ferries.