A tract of sand dunes on the south coast of Wairarapa will soon be protected under a partnership between the Department of Conservation and the land owner.
Work has begun on fencing, weeding and signposting more than 21 hectares to prevent damage to the Te Humenga dunes.
DoC says the dunes have significant conservation value and are home to a rare sand tussock, katipo spiders and the Notoreas Wellington moth.
It says the dunes, on land owned by Simon Crawford, are among the 10 most important such sites in the lower North Island.
Palliser Bay Station's farm manager, Brian Jephson, also supports the plan.