The Río Frey is located in Chubut Province, Argentina, within or adjacent to Los Alerces National Park. It sits upstream of the Futaleufú dam on the Argentine side of the border, in a region that draws far less paddling traffic than the internationally renowned Futaleufú River in Chile, despite sharing the same general watershed.

For paddlers, the Río Frey is characterized by technical whitewater and is considered appropriate only for expert-level packrafters. The advanced nature of its whitewater sections means it is not suitable for beginners or intermediate paddlers. Given its location within Los Alerces National Park, paddlers should expect to follow park regulations, which in this area include requirements such as single barbless hooks for anglers and catch-and-release rules in certain zones — regulations that reflect the park's broader conservation mandate. Fishing licenses are required for anglers within the park and can be obtained at the park entrance or at tackle shops in Esquel.

Los Alerces National Park, which provides the broader context for the Río Frey, is a landscape of significant natural beauty. The park also encompasses the Río Arrayanes and Lago Verde, and the Río Frey confluence is a productive fly fishing location for brown trout and rainbow trout. The fly fishing season runs from November through April, with February and March considered the peak months.

The nearest service hub is Esquel, where outfitters, guides, and equipment can be sourced. Given the remote and technical character of the river, paddlers planning a trip should arrange logistics well in advance and be prepared for limited on-site infrastructure.