In the island of Neduntivu (or Delft), the Delft national park is a national park of 18 square kilometers designated by the Strategic environmental assessment of the northern province conducted by the government with the assistance of the United Nations Development program and the United Nations Environmental program. But it is the only place in the world to observe wild ponies, who are believed to have been introduced to the island by the Portuguese. The delft island is accessible by both water and air, with a boat ferry taking upto an hour, starting from Punkudativu.

Delft is an island situated in the Palk straight, in northern Sri Lanka. The island is flat with shallow waters and beaches of coral chunks and sand surrounding it. The vegetation is semi-arid tropical with palmyrah, dry shrubs and grasses growing on grey porous coralline soil. The park and the surrounding island is the home to most of the birds and aquatic animals common to the northern part of Sri Lanka. But it is the only place in the world to observe wild ponies, who are believed to have been introduced to the island by the Portuguese.

The name Delft is derived from the Dutch city of Delft, named by Rijckloff van Goens, who also named seven other islands after cities in his home country. Even though the name only as old as the colonial period, the history of the island itself goes back to around 1000 years ago, to the times of Chola Dynasty, of which an old temple can be seen in the western coast of the island. The island was fortified during the Dutch era and even though not as big or strong as Galle or Trincomalee forts, a fort made by Dutch surrounds the island.