Several introduced weed species are present along the track including privet, cotoneaster and Montbretia. These are garden escapes introduced by settlers and bach-owners.
These species are spread by birds, wild pigs and erosion and pose a threat to the native character and biodiversity of the area and thus are being removed. Weed removal, including wilding pines, and further along the track, willow leaved hakea are important activities for the Abel Tasman Birdsong Trust and Project Janszoon. You will see places where weeds like gorse have been cleared and native trees planted.