North Sentinel Island is part of the Andaman and Nicobar Islands in the Bay of Bengal, India. It is known for being one of the most isolated places on Earth, inhabited by the Sentinelese people, an indigenous tribe that has resisted contact with the outside world.

The island itself is the primary point of interest, notable for its untouched natural environment and the presence of the Sentinelese people, one of the last uncontacted tribes in the world. The island is covered with dense tropical forest and surrounded by coral reefs.

The coral reefs around North Sentinel Island are rich in marine biodiversity and contribute to the island's ecological significance. These reefs are part of the larger Andaman Sea ecosystem and are important for conservation efforts.

The broader marine environment around North Sentinel Island is notable for its diverse aquatic life and pristine waters. It is part of a protected area that supports various species of fish, corals, and other marine organisms.

While North Sentinel Island itself is restricted, nearby islands in the Andaman group offer opportunities for exploration, including beaches, forests, and cultural experiences with other indigenous communities who have established contact with the outside world.

This national park, located on nearby islands, offers visitors a chance to experience the natural beauty and biodiversity of the region, including tropical forests, wildlife, and marine life.

Though not a tourist attraction, the island is of significant anthropological interest due to the Sentinelese tribe's unique way of life, their resistance to outside contact, and their preservation of ancient hunter-gatherer culture.

Visitors on authorized boats or flights can sometimes view North Sentinel Island from a safe distance, appreciating its dense greenery and isolation without disturbing the inhabitants.
The waters around the island are home to various marine species, and observation from a distance can provide insights into the rich marine ecosystem of the region.

The island is designated as a cultural preservation area to protect the Sentinelese tribe and their environment, emphasizing the importance of respecting indigenous rights and natural habitats.

The Indian government has established a restricted access zone around North Sentinel Island to prevent unauthorized visits, ensuring the safety and privacy of the Sentinelese people.