Thanks! Have taken your suggestion about Kalpa/Nako. Also will now stop a day at Leh. For Turtuk, i was planning to just make a day trip there. Start from Hunder -> visit Turtuk -> stay at Diskit. Thinking was that the next few days will be long drives from Spangmik to Karzok to Sarchu to Manali. Is it really worth it to stay a night at Turtuk?