In the morning, visit the Grand Palace, followed by a street food tour in Chinatown. Spend the afternoon exploring the Chatuchak Weekend Market, and end the day with a dinner cruise on the Chao Phraya River.
Spend the morning at the Doi Suthep temple and the Bhubing Palace gardens. Take a cooking class and enjoy the dishes you made for lunch. In the evening, explore the vibrant Nimmanhaemin Road area.
Visit the White Temple (Wat Rong Khun) in the morning and the Black House (Baan Dam) in the afternoon. In the evening, enjoy a traditional northern Thai Khantoke dinner and cultural show.
Spend the morning at the Nong Nooch Tropical Garden and enjoy a Thai massage. In the afternoon, visit the Sanctuary of Truth temple, followed by a cabaret show in the evening.
Visit the ancient temples of Wat Yai Chai Mongkhon and Wat Phra Si Sanphet in the morning. Enjoy a boat tour of the city in the afternoon and visit the Ayutthaya Floating Market.
Spend the morning at the Big Buddha and the Wat Chalong temple. Take a speedboat tour of the Phang Nga Bay and James Bond Island in the afternoon. Enjoy the nightlife in Bangla Road in the evening.
Visit the Tiger Cave Temple and the Emerald Pool in the morning. Take a long-tail boat tour of the Krabi islands in the afternoon. End the day with a sunset dinner at Railay Beach.
Consider visiting the Damnoen Saduak floating market near Bangkok. Side trips to Koh Samui and Koh Phi Phi from Phuket are highly recommended. To maximize fun, try out Muay Thai boxing and elephant trekking. Don't forget to try the local street food and Thai milk tea.