A Nature Lover's 7-Day Itinerary in Thailand

1. Day 1: Erawan National Park
   3 hours (120 km) from Bangkok

   Start the day early and go on a hike to the seven-tiered Erawan waterfalls. Enjoy a picnic lunch by the falls and then explore the park's caves and trails in the afternoon. End the day with a relaxing dip in the park's natural hot springs.

2. Day 2: Khao Yai National Park
   4 hours (200 km) from Erawan National Park

   Take a morning jungle trek and spot some of the park's 300 bird species and 67 mammal species. Visit the park's scenic viewpoints and end the day with a night safari to see elephants, tigers and other nocturnal wildlife.

3. Day 3: Chiang Mai Nature Reserve
   1 hour (20 km) from Chiang Mai

   Visit the Chiang Mai Nature Reserve in the morning to see the park's diverse flora and fauna. Take a guided walk and learn about the local ecosystem. In the afternoon, visit the nearby Royal Park Rajapruek and marvel at the park's beautiful gardens.

4. Day 4: Ang Thong Marine Park
   2 hours (50 km) from Koh Samui

   Take a boat tour to Ang Thong Marine Park and marvel at the park's magnificent limestone cliffs, hidden lagoons, and pristine beaches. Snorkel and enjoy a picnic lunch on one of the park's secluded beaches. Try sea kayaking and explore the park's hidden caves and coves.

5. Day 5: Doi Inthanon National Park
   1 hour (36 km) from Chiang Mai

   Start the day with a visit to the park's beautiful twin pagodas and enjoy stunning views of the surrounding countryside. Visit the park's waterfalls and go on a jungle trek to spot some of the park's unique bird species. End the day with a visit to the park's scenic hill tribe villages and experience the local culture.

6. Day 6: Khao Sok National Park
   3 hours (140 km) from Phuket

   Take a morning boat tour of Cheow Lan lake and explore the park's floating bungalows and limestone peaks. In the afternoon, go on a jungle trek and spot some of the park's unique wildlife species. End the day with a swim in the park's crystal-clear streams.

7. Day 7: Phi Phi Islands
   1.5 hours (50 km) from Phuket

   Take a ferry to the Phi Phi Islands and explore the park's stunning beaches and turquoise waters. Snorkel and experience the park's diverse marine life. Visit the park's scenic viewpoints and enjoy a relaxing sunset on the beach.

Recommendations

Consider visiting the Elephant Nature Park in Chiang Mai to see rescued elephants in their natural habitat. A side trip to the Ayutthaya Historical Park, a UNESCO World Heritage site, is a must for history enthusiasts. Make sure to try the local street food and night markets to experience the local culture.

Time and Costs Estimates

• Erawan National Park (1 day, 200 THB)
• Khao Yai National Park (1 day, 400 THB)
• Chiang Mai Nature Reserve (1 day, 300 THB)
• Ang Thong Marine Park (1 day, 1500 THB)
• Doi Inthanon National Park (1 day, 200 THB)
• Khao Sok National Park (1 day, 1000 THB)
• Phi Phi Islands (1 day, 1000 THB)
• Total Estimated Costs: 3600 THB