Stretching down the Malaysian peninsula, the slender trunk of the figurative elephant separates the Andaman Sea from the Gulf of Thailand, providing Thailand with beaches and islands along opposing shores. Once, the sheltered coves of the narrow Isthmus of Kra were important ports along an ancient, strategic trading route; today the islands of Phuket and Koh Samui are equally important as tourist destinations, though both coasts also contain numerous historical attractions as well as national parks, wildlife sanctuaries, and spectacular forests, waterfalls, and beaches.