Start off your trip in Bangkok with a visit to the Wat Phra Kaew and the Grand Palace. Admire the intricate details of the temples and the rich history of Thailand. Afterwards, head to the Chatuchak Weekend Market, one of the largest markets in Thailand. Explore the various stalls selling everything from clothing to electronics to unique souvenirs. End the day at the Rod Fai Night Market in Ratchada, which features a retro theme and delicious street food.
Spend a day full of fun and excitement at Siam Park City. It's a huge water park with plenty of thrilling rides and slides for all ages. You can also visit the Sea Life Bangkok Ocean World, which is located inside Siam Paragon mall. The aquarium features a wide variety of marine life, including sharks and rays. End the day with a visit to Asiatique the Riverfront, a night market next to the Chao Phraya River, which features shops, restaurants, and entertainment.
Explore the fascinating history and culture of Bangkok by visiting the Wat Arun Temple and the Wat Pho Temple. Both temples are adorned with stunning architecture and intricate sculptures. Afterwards, head to the JJ Green Night Market, another popular night market that features vintage clothing, street food, and live performances.
If you have more time, consider visiting the Dream World Theme Park or the Bangkok Art and Culture Centre. If you have less time, you can combine the activities on Days 1 and 3. Keep in mind that some places, such as the temples, require appropriate clothing, so dress modestly. It's also helpful to bring cash for the night markets, as many vendors do not accept credit cards.