Southern Thailand usually refers to the area south of Bangkok and continuing down into the finger-like Isthmus of Kra, a narrow strip of land bordered on the west by Burma, and widening out down to the border with Malaysia. The Isthmus is climatically and geographically dramatic, getting the longest monsoon in the country and with striking rock formations and cliffs lining its coasts. Rice is not the major crop here, and agriculture instead revolves around huge banana and coconut plantations, and freshly-caught fish from the sea.