Thailand Travel Guide: A 10-Day Itinerary ✈️ Based on my visit to Thailand. Written by Debarun Sana. Thailand remains one of the most accessible and varied countries in Southeast Asia to visit — a genuinely dense capital, ancient temple ruins, mountain culture in the north, and some of the region's best-known islands and beaches in the south. This 10-day route covers Bangkok, Ayutthaya, Chiang Mai, and finishes on the Andaman coast around Krabi and Phuket. Entry Requirements U.S. citizens (and citizens of roughly 93 eligible countries) currently receive a free 60-day visa exemption on arrival — no advance application, fee, or photo required. This was extended from 30 to 60 days in late 2024. Worth knowing before you book: Thailand's cabinet approved a rollback to 30 days, though it hadn't taken effect as of this writing pending official publication in the Royal Gazette. Go by the "admit until" date actually stamped in y...