Scuba diving in India - is the biggest activity on the & Nicobar Islands other than lying around and eating seafood. The best season for diving in Andaman & Nicobar is from December to April. The exciting experience of Scuba diving is a major attraction.
Exploring the Longest Underwater Cave in Russia. Ordinskaya or the Orda Cave is the longest underwater cave in Russia. Accoridng to the Orda Cave Awareness Project it is the first and only underwater gypsum excursion cave in the world.