W F Moss Scenic Reserve Picnic Area sits in a quiet valley about ten minutes off the main road near Riwaka, on New Zealand's South Island.

Managed by the Department of Conservation, this free campsite offers unpowered and tent sites among native plantings alongside the Riwaka River, where visitors can swim in clear, refreshing water.

Shaded sites, picnic tables, toilets, and wheelchair access are available. No booking is required — it operates on a first-come, first-served basis. Pets are not permitted.

A short five-minute drive further up the valley leads to the Riwaka Resurgence, a striking natural feature where the river emerges directly from a cave at the base of the hills.

The reserve covers just over 36 hectares and is considered one of the closest freedom camping spots to Abel Tasman National Park.