Mangroves are beautiful greenery in many of the South Indian the rivers and backwaters. The have a peculiar habitat to live themselves as well as to form a niche for a lot of living organisms. Kumbla river mouth island allows you to go closer and study the mangroves, round the year. It will be a pleasant feeling for everyone to enjoy the nature without doing much adventure. You will get the idea by reading this article: http://hub.me/amW9s