Andaman and Nicobar, a part of India which is not on the map of many travelers, and it should be there for every traveler. There are two ways to reach Andaman; one is by Ship, which takes 3 days and 3 nights’ journey and 4 days and 4 nights journey from Chennai. The other way is by Air, which takes around 1.5-2 hours to reach from Chennai. I recommend you go by Air, as travelling by Ship is very boring, and takes a lot of energy out of you. Overall, Andaman is a great experience, where you get to see very unusual places. The sun rises at around 4-5 am, by 7 am it is quite hot, and by 5-6 pm it is pitch dark! The weather is unpredictable, so the plane/boat may get delayed/cancelled. Some points may not be reachable because of bad weather.