Nydia Campsite is a backcountry Department of Conservation site located in Nydia Bay within the Pelorus Sound area of Marlborough. The campsite sits on the Nydia Track, a 27-kilometre route suitable for trampers and mountain bikers traversing coastal forest, regenerating bush and farmland across two saddles. Facilities are basic, comprising toilets only, with no fires permitted. The sheltered bay setting provides opportunities for exploring the coastline and local history. Payment is by DOC Campsite Pass or cash at the self-registration stand, with fees charged per night for adults and children.