I have been years snorkeling and diving in Andaman and Nicobar islands but I never had any shark issue. Generally the water quality is fine, and can be as clear as 20 meters in a good day. Nevertheless, one should always be careful and swim in public places. When I was researching about Andaman Budget Tour Packages I discovered that there are numerous operators who make guided snorkeling and diving tours, a great way to be safe and to be able to see the phenomenal marine life. These excursions are regularly guided with the help of highly experts who are familiar with the waters and can guide you on the way to avoid any possible hazards. The guides also offer great experience on the marine ecosystem, they can also assist you in sightseeing various fish species and also other sea animals. Also, there are shark nets in numerous beaches of Andaman and Nicobar islands which may be very helpful to enhance security. With precaution, escort, and care, you can have a good and safe fun in the water.