Lago Leones is a glacially fed lake located within Laguna San Rafael National Park in the Aysén del General Carlos Ibáñez del Campo Region of Chile. The lake receives calving ice directly from the Leones Glacier, which is itself formed by the convergence of the Soler, Fiero, and Leones glaciers. This makes the lake a striking destination, with active glacier calving as a defining feature of the environment.

Access to Lago Leones is not straightforward. The primary approach involves crossing a large lake by boat and then traveling up the Río Leones by jet boat — a stretch of river characterized by shallow water, exposed rocks, and tight corners that require skilled navigation. The river section covers a significant distance and is heavily managed by local operators who have cleared boulders and created passages to allow jet boat passage. When water levels are low, the jet boat cannot travel as far upriver, which extends the required hiking distance to the lake. From the jet boat's furthest point upriver, a roughly 2-mile (3.2 km) trail leads to the lakeshore, taking approximately one hour on foot.

The full round trip from Puerto Guadal covers approximately 70 miles (112 km) across the lake and up the river, running from around 9:30 am to 5:30 pm. Tours do not operate in high wind or low water conditions, both of which are important safety considerations for anyone planning a visit. The exposed nature of the route means paddlers and visitors should carry ample water and use high-SPF sunscreen, as there is little shade throughout the day.

An alternative approach to the Leones Glacier area involves a full-day overland journey by 4x4 vehicle, though this is a separate route from the river-based access. Given the remote location within a national park, the area is subject to the regulations governing Laguna San Rafael National Park. Independent paddling on Lago Leones itself would require careful planning given the challenging river access and the remoteness of the location.