It’s an early start today, as you take the train to Ayutthaya. The former capital city dates back to the 1300s and is now home to Ayutthaya Historical Park – a UNESCO World Heritage site consisting of 425 temple ruins and historical sites. After the train journey, have lunch at a local restaurant that serves popular Thai comfort food, then take a tuk-tuk to the historical park for an afternoon cycle. On your bikes, you’ll tour around the important temples of Wat Phra Si Sanphet, Wat Lokayasutharam, Wat Na Phra Main and more, marvelling at their grandeur. After, check into a day room and take the rest of the afternoon to relax. This evening, take an overnight train to Chiang Mai.