In the morning, explore the Haew Narok Waterfall Trail, where you can see the stunning 150-meter waterfall and have a picnic lunch. In the afternoon, take a guided tour of the park to see the elephants, gibbons, and other wildlife. In the evening, enjoy a sunset safari to see the nocturnal animals and birds.
Start your day early by hiking the Kew Mae Pan Nature Trail, which gives you stunning views of the surrounding mountains. In the afternoon, visit the Wachirathan Waterfall and the twin pagodas, which commemorate the King and Queen of Thailand. In the evening, enjoy a traditional Thai dinner and cultural show at the nearby town of Mae Rim.
Take a speedboat tour of the Similan Islands, where you can snorkel with the colorful fish and coral reefs. In the afternoon, relax on the white sandy beaches and take in the stunning views. In the evening, enjoy a seafood dinner on the beach and watch the stars.
Other nature attractions to consider are Erawan National Park, Phang Nga Bay and Khao Sok National Park. For side trips, you could visit the ancient city of Ayutthaya or the cultural center of Chiang Rai. To maximize your fun, try jungle trekking or rock climbing in Krabi. Finally, make sure to try the local street food and visit the night markets.