The Saint Helena National Trust is an independent not-for-profit organization which aims to preserve Saint Helena's environmental and cultural heritage. It was founded on 22 May 2002, the 500th anniversary of Saint Helena's discovery.
The trust was established under the St Helena National Trust Ordinance, 2001. Its principle objectives are to preserve, maintain, manage, protect and augment, tender advice, promote access to and enjoyment of land, buildings, animal life, plant life, marine life, furniture, pictures, and documents and chattels of any description having national or historic or artistic interest.
The Millennium Forest is a 250-hectare area of replanting on the island, which aims to restore part of what was the Great Wood. The trust continues to repopulate the forest and uses it for community engagement, connecting the endemic species, and invertebrates in lesson planning and general awareness.
The trust is committed to the conservation of the Saint Helena plover, the national bird of the island, which is locally known as the wirebird. The Darwin Plus 107 project assists the Trust with the reduction of invasive vertebrate species that serves as a threat to the wirebird population.
Within the last four years,[when?] the trust has established a marine conservation section, working in partnership with Blue Marine Foundation with a key focus being whale sharks, known locally as "bone sharks".
In 2006, Michel Dancoisne-Martineau donated the heart-shaped waterfall valley to the trust. A new pathway was constructed through the valley, which opened in December 2010.
The trust is currently working on the digitalisation of the archives, particularly focusing on the East India Company records of St Helena from 1673 and 1834.