Krabi, a provice bordering the Andaman sea 820 Km from Bangkok. Most of which are limestone mountains with a few small strips of coastal plains. The limestone country means there are numerous caves, especially in Ao Luek. Some caves are right next to the mangrove forests. Some cliffs have been sculpted by the elements and take on interesting shapes. Old Krabi was home to great primeval forests. Although most of them are gone, patches are left in places like Phanom Bencha mountain whose peak rises as high as 1,397 m.