Long but very enjoyable full day! Hotel pickup right on time with good information/contacts emailed 1 day before the day of activity. The guide shared good historical stories for us to appreciate the 4 parks we visited, else it might be a little boring just walking around temples and ruins, under hot sun. Very impressive and beautiful structures with rich history. Strongly recommended to visit Ayutthaya with a local guide. We had a small group of 6 in a van, with 3 other missing guests. The van could be too crowded if all 9 squeeze in. Remember to check email a day before the activity because the meeting location could be different from the listed one in the description. Our 3 missing guests didn't show up at the correct meeting location. To be fair, the booking confirmation email also reminded us to lookout for email later for the meeting time and location.