The 40-some jagged jungle islands of Ang Thong Marine National Park stretches across the Cerulean Sea like a beautiful piece of artwork. Located in the Gulf of Thailand this marine park was established in 1980. February, March and April are the best months to visit this ethereal preserve of greens and blues. The crashing monsoon waves mean that the park is almost always closed during November and December. All the islands offer different beauty and some offer amenities such as ranger stations, bungalows, shops, and spas.