Mount Harriet National Park is one of the nearest wilderness areas to the capital Port Blair. The park is one of the popular tourist spot due to its historic importance and natural beauty. The national park spreads over an area of 46.62 km2. It is located at a distance of 20 kms from Port Blair. The park homes several highest points in Andaman and Nicobar Islands. The area includes steep precipitous slopes and gentle slopes with undulating terrain. It has dense evergreen and semi evergreen forests that have outstanding natural beauty. The entire national park forms a chunk of the hill ranges in the eastern part of south Andaman Islands.

Mount Harriet is the highest peak in the South Andamans (383 metres high). The scene of this peak also printed in the backside of Rs.20. During British Raj this highest peak was established as the summer headquarters of the Chief Commissioner during, this place is an ideal for a nice and fascinating over view of the outer islands and the sea. The peak offers some of the most breathtaking views of sunrise and lazily laid Andaman sea all around. The greenery everywhere provides you immense feel that you are in a deep forest.

Mount Harriet National Park is rich with various types of fauna and flora, which make it the most favourite tourist destination of nature lovers. It homes 90 species of birds, out of which 11 are endemic; 27 species of reptiles and amphibians including 12 endemic species. The important reptiles reported from the park are King Cobra, Andaman Cobra and two nesting marine turtles-green sea and Olive Ridley. You can see around 12 species of mammals in the park such as endemic Andaman Pig, bats and Shrew. It also homes 120 species of moths including many new species.

Mount Harriet Marine National Park supports all major forest types in the Andaman and Nicobar Islands namely Evergreen Forest, Andaman Moist Deciduous Forests, Andaman Semi-evergreen Forests and Littoral Forests. The park is also rich with 393 plant species that includes 74 endemic and 51 introduced species.

One can trek up to Madhuban which is a natural and famous trek through a nature trail and can find rare endemic birds, animals and butterflies. It gives the tourists an opportunity to see large number of birds, variegated animals and butterflies. As the park homes several wild animals, this place is suitable for wildlife tour. You can also enjoy the beautiful views of the natural sights of Andamans. It is also a suitable place for bird watching.