Why should you go there and how do you do it right?

Think of this less as a single attraction and more as the reason Koh Chang is still forested. The park stretches across the mountainous interior of the island and the surrounding smaller islands. This means two completely different day trips: a hike under the dense canopy of the rainforest to waterfalls, or a boat trip for snorkeling at the offshore reefs. Hornbills and monitor lizards are the animals that visitors particularly remember.

If you only have time for one day trip, I would base your choice on the time of year. From November to April, the sea is calmer and the water clearer, making it ideal for snorkeling around the offshore islands. Outside of this period, you should focus on the hiking trails and waterfalls. The beaches within the park boundaries are significantly quieter than the coastline on the west side – and that's precisely the main reason for visiting.

Wear long trousers and closed shoes in the jungle. The ground is uneven, the insects are persistent, and flip-flops will ruin your afternoon.