Wear comfortable shoes as you’ll be walking a lot around the historical park. Bring sunscreen, a hat, and plenty of water, as the area can get quite hot and sunny, especially in the afternoons. Modest clothing is advised, as many temples are religious sites. Respectful behavior is expected, so avoid loud conversations and maintain decorum while exploring the ruins. If you plan to rent a bike, ensure it’s in good condition and be cautious while cycling on uneven paths.

Getting to Ayutthaya from Bangkok is easy and affordable. The most common way is by train, departing from Hua Lamphong Station in Bangkok. The journey takes around 1.5 to 2 hours, and tickets cost about 20–300 THB depending on the class. Alternatively, you can take a bus or minivan from Victory Monument, which also takes about 1.5 to 2 hours. For a more comfortable option, you can book a private car or join a guided tour that includes transportation.

The best time to visit Ayutthaya is during the cooler months from November to February, when the weather is more comfortable for exploring. Morning visits are recommended to avoid the midday heat and crowds. The site can get busy on weekends and during Thai public holidays, so visiting on weekdays is ideal. Be prepared for higher temperatures from March to May, and remember to wear light, breathable clothing.

Ayutthaya is a perfect destination for a day trip from Bangkok. Start your day by visiting the main temples within the Ayutthaya Historical Park, such as Wat Mahathat and Wat Phra Si Sanphet. You can also explore the nearby markets for souvenirs. After touring the temples, relax with a boat ride along the Chao Phraya River or visit the nearby Bang Pa-In Summer Palace, which offers beautiful gardens and royal architecture. Many guided tours from Bangkok include both Ayutthaya and the Summer Palace in a full-day itinerary.