Start your honeymoon in Bangkok with a visit to the Grand Palace, which served as the royal residence and court until 1925. Afterward, head to the Wat Phra Kaew, also known as the Temple of the Emerald Buddha, the most sacred Buddhist temple in Thailand. Complete your day with a romantic dinner at Sala Rattanakosin Eatery and Bar offering rooftop dining with fantastic views of the Grand Palace
Take a day trip to the UNESCO World Heritage site of Ayutthaya, the ancient capital of Thailand. Wander around the ruins of ancient temples and palaces like Wat Mahathat and Wat Phra Si Sanphet. Watch the sunset from the Wat Chaiwatthanaram temple, and don't miss the light and sound show at Ayutthaya Historical Park.
Take a flight to the pristine island of Koh Samui for a relaxing day at the beach. Enjoy a private beach picnic with your loved one at Crystal Bay Beach and take a dip in the clear blue waters. In the afternoon, learn about and taste Thai cuisine with a cooking class at Samui Institute of Thai Culinary Arts, where you can learn to make exotic dishes like Tom Yum Goong and Pad Thai.
End your honeymoon with a visit to Chiang Mai, an ancient city in the north of Thailand. Visit the historic Wat Chiang Man temple, the oldest temple in Chiang Mai. Experience an intimate elephant encounter at the Thai Elephant Care Center, where you can help feed and bathe the elephants. Finally, watch the show of the famous Khum Khantoke traditional dance while enjoying a romantic dinner with authentic Thai food.
If you have more time, consider adding a day trip to the Bridge on the River Kwai in Kanchanaburi or a relaxing evening at the luxurious Mandarin Oriental in Bangkok or Four Seasons Resort Koh Samui.
If you have less time, consider skipping Ayutthaya or Chiang Mai and enjoy more leisure time in Bangkok or Koh Samui. Don't forget to book your flights and accommodations in advance to avoid last-minute complications.