Dhani Nallah Mangrove is a one-kilometer long wooden boardwalk that twists through the mangrove creeks. This walkway is the longest one of its kind in India. It is perfect to observe the diverse mangrove eco-system in one place. The walkway opens up to the pristine long beach- Dhani Nallah Beach, which is popular as a hatchery ground for sea turtles. There is a small eco-hut, which is named as Olive Ridley, named after the most frequent turtle species of the beach. It offers a fantastic picnic area in the shadows of special casuarina trees with benches and sunbeds. You can enjoy at the swings and a bamboo tower from where you can praise the pleasant view of the whole beach. It is among the most incredible attraction spots in Middle Andaman Island. Most of the time, the whole place is deserted and you can enjoy the long serene walk all by yourself.