Trip Type: Small and Big Group The minimum is usually no less than 2, and the maximum is no more than 30 but some can be smaller or bigger, depending on the trip. Check individual trips for details. A good time for travellers: from March untill November Three stans - stretches from the Caspian Sea in the west to China in the east and from Afghanistan in the south to Russia in the north. It is also colloquially referred to as "the -stans" as the countries generally considered to be within the region all have names ending with the Persian suffix "-stan", meaning "land of". Central Asia has historically been closely tied to its nomadic peoples and the Silk Road. It has acted as a crossroads for the movement of people, goods, and ideas between Europe, Western Asia, South Asia, and East Asia. The Silk Road connected Muslim lands with the people of Europe, India, and China.