Lake Barrington is a long, narrow reservoir located in northwest Tasmania, approximately 40 kilometres south of Devonport and about 15 minutes from Sheffield. The lake is managed in part by Hydro Tasmania and is home to an international rowing course that hosted the 1990 World Rowing Championships, giving it a notable place in Tasmania's sporting history. The rowing course sits toward the southern end of the lake and is a significant feature that paddlers must be aware of when planning their trip.

There are three boat launch areas available. On the eastern side, Kentish Park and Weeks Reach both provide access, with Kentish Park offering a boat ramp and floating pontoons. On the western side, a ramp is accessible off Lake Barrington Road near Wilmot. Both the eastern and western sides have free camping areas with flush toilets, shelters, BBQs, picnic tables, and rubbish bins, making them practical bases for multi-day paddling trips.

Paddlers should be aware of several important restrictions. No water activity is permitted within the boundaries of the international rowing course toward the southern end of the lake. A 5-knot speed limit applies within the rowing course area, and there are prohibited navigation zones near Devils Gate Dam and within 2,000 metres of Cethana Dam. Paddlers should stay clear of all infrastructure associated with the rowing course, as tampering with it is an offence.

The lake is also used by water skiers and power boats, so paddlers should remain alert to other vessel traffic. Snakes have been observed swimming near kayaks on the lake, which is worth keeping in mind when landing or camping along the shore. The Forth waterfall is noted as a worthwhile destination accessible by paddle, located on the western side of the lake. The lake's long, narrow shape lends itself to linear exploration, and paddlers have noted the possibility of wild camping along the shore, though this should be verified with local authorities before planning overnight trips.

The lake is open year-round, and paddlers have reported a variety of weather conditions including sunshine and cold winds with rain, reflecting Tasmania's variable climate. Launching from either Kentish Park or the rowing course area are the two most commonly used options for paddlers.