Start the day at the Wat Phra Kaew temple complex, which houses the famous Emerald Buddha. Next, head to the Wat Pho temple, home to a giant reclining Buddha statue. After visiting the temples, take a tuk-tuk to Khao San Road for some shopping and street food.
Take a tour of the Elephant Nature Park and spend time with these gentle giants in their natural habitat. After visiting the park, go for a hike to the Bua Tong Waterfall, where you can climb up the waterfall with the help of limestone deposits on the rocks.
Start the day early with a thrilling zipline tour through the jungle with Flight of the Gibbon in Chiang Mai. After lunch, explore the old city's numerous temples, including the Wat Chedi Luang Worawihan temple. As night falls, head to the Chiang Mai Night Bazaar for some shopping and street food.
For those with more time, consider adding a trip to the Doi Inthanon National Park near Chiang Mai. For those with less time, consider skipping Khao San Road or one of the temples in Bangkok. Make sure to budget for transportation between locations, and note that some activities may need to be booked in advance.