This is a hosted stay through Hipcamp, below is the information provided by the Host regarding their offering.
Small farm and vineyard at Macquarie Plains in the Upper Derwent Valley, southern Tasmania. The property is 380m from the junction of the Lyell Highway and the Gordon River Road. It has 450m absolute river frontage on the River Derwent (no riparian reserve). The river here is freshwater, potable and a renowned trout water (licence required). Three kilometres from the village of Gretna.4WD preferred. 2WD need to assess river access.
Campers need all own amenities and leave no trace. Dog friendly but please see rules, as have livestock on the property and so dogs need to be well controlled at all times. Campfires permitted when restrictions aren't in place (see rules around campfires). Due to hydro generation activity, the river may slowly rise or fall up to 1m (often without rain) so please be careful around the water.