Breathtaking natural scenery, stunning Buddhist temples and amicable locals - these are what draw millions of visitors to Thailand's northern cities of Chiang Mai and Chiang Rai every year. For nature-lovers, you'll get the chance to learn how indigo dye is acquired from the indigo plant and how it is used to dye the mor hom, the northern people's traditional clothing. A visit to the elephant sanctuary run by Sangduen "Lek" Chailert, voted "Hero of Asia" in 2005 by Time magazine will allow you to mingle with elephants in their natural surroundings, feed them and even bathe them in a nearby river. The list of activities is endless - from luxury spas, sunset cruises down the Mae Ping river or making merit at one of the breathtaking temples.