Once you reach in Leh, there are nearby places that you can visit one-place per day. There is Pangog Lake, Nubra Valley, and Khardungla Pass, and Lamayuru. You can visit them in any order. You can park your cab and get bikes on rent to visit these places. For all these places, you need to start early, like 8 AM or so; because you need to be back by evening. As melted ice starts flowing on the road.
Visit Pangong Lake
This the most amazing lake. Few bollywood movies have been shot there, like 3 Idiot’s climax scene.
Visit Khardung La Pass: The Height Motorable Road in the World
There is a cafeteria on the top. You’ll enjoy the Maggi there. There is also a souvenir shop which sells T-shirts and mementos branded with “Khardung La Pass” tag, so get one.
There are many monasteries in Leh. Lamayuru is the biggest. If you are religious and believe in spirituality. You’ll like talking to the monks there and their life style.
Visit Nubra Valley
Nubra is a tri-armed valley located to the north east of Ladakh valley. Diskit, the headquarter of eponymous Subdivision and also of Nubra tehsil, is about 150 km north from Leh town