The River Lochay flows through the village of Killin in the Breadalbane region of central Scotland, eventually joining Loch Tay at the western end of the loch. The river runs from its headwaters down to the confluence with the River Dochart near Killin, and the combined waters then enter Loch Tay. A bridge marks the point where the river meets the loch, accessible by turning left at Killin and heading upstream from the loch's western end.

The Killin Outdoor Centre, located in Killin village, offers kayak hire and guided paddling on the River Lochay. The centre is situated directly across the road from the river, with kayaks laid out on the grassy bank for easy launching. Staff at the centre have noted that kayaks are recommended over Canadian canoes for less experienced paddlers on this river. The centre provides lifejackets and waterproof bags for valuables as part of their hire arrangements.

The river is used for both recreational paddling and angling. Fishing on the River Lochay is fly-only, and permits are required for anglers. Overnight camping without permission is prohibited in the area, as are fires and barbecues. Paddlers should be aware that some sections of the riverbank are restricted and marked with fencing, walls, and notices. The river corridor from the Dochart junction upstream to the headwaters falls within a managed permit area, so paddlers should familiarise themselves with any access arrangements before launching.

The western end of Loch Tay, where the Lochay enters, is noted for small islands that support a local beaver population. The broader Loch Tay area contains evidence of prehistoric settlement, including Crannog sites — Iron Age artificial islands constructed by dropping rocks into the loch to form platforms, upon which timber structures were built on stilts. An interpretive centre on Loch Tay provides context for these historical features, which can be observed from the water.