Kilim Karst Geoforest Park, Langkawi Geopark, Kedah, has a rich mangrove forest, flourished on limestone formation, which is a rare occurrence.

Kilim Karst Geoforest Park, Langkawi, is situated in a transitional zone where the Malesian and the Indochinese floristic regions meet. Change in colours signifies a change in the season from wet to dry.

Perhaps the most interesting features of the Setul Formation are the product of surface erosion and dissolution on limestone.

Machinchang Granite Geoforest Park, Pulau Langkawi, Kedah, Malaysia, has the oldest rock formation in the country, which was formed about 505-550 million years ago.