Also known as the Kilim Karst Geoforest Park, this 100 square kilometer area in Langkawi is a nature reserve and a collection of geo-sites full of amazing flora & fauna, and stunning geological formations like mammoth limestone rocks, fossils, caves, lagoons, beaches and seascapes. The whole area is administered and protected by the Peninsular Malaysia Forestry Department. It is part of the larger Langkawi Geopark and one of the biggest hot spots of Eco tourism in the entire region. The approach to the Kilim Geopark is through the Kilim river. You will need to take a tour on a motor boat that starts from the Kilim Jetty or the Tanjung Rhu bay area both located at the north eastern end of Langkawi. A guided boat tour would be ideal to appreciate all the attractions at Kilim Geopark. The Kilim Geopark area comprises of the river basins of Kilim, Kisap and Air Hangat along with several islands including Langgun and Tanjung Dendang. So what do you get to experience? The boat ride will initially take you along the Kilim river with dense green mangroves (also known as wetland mangroves) on one side and gigantic limestone rocks on the other rising from the river bed. Some of these limestone rocks that look like mountains, have been formed some 500 million years back. The mangroves serve to protect the shoreline from the sea and prevent soil erosion by forming a barricade.