The reclusive producer and songwriter converted more than 130 acres of his private real estate to protected national land last summer (14) after local conservation groups criticised him for buying up such huge areas.

His latest donation allows for public access to 21 tracks and trails across his properties.

Confirming Lange's donation, New Zealand Conservation Minister Maggie Barry says, "We are very grateful for Mutt Lange's extraordinary generosity and vision in securing permanent protection for this unique and special landscape."