Lake Irwin is located in southwestern Manitoba, situated within the Municipality of North Cypress Langford and near the town of Neepawa. The lake covers approximately 477.62 acres with a shoreline of roughly 9.75 miles, making it a manageable size for a day of paddling. Other nearby communities include Minnedosa, Carberry, Brandon, and Rivers.

A boat launch provides access to the lake and has been improved with gravel surfacing to make it more accessible. An Aquatic Invasive Species sign has been installed at the launch area, reflecting provincial concerns about the spread of invasive species in Manitoba waters. Paddlers should be aware of and comply with any Aquatic Invasive Species regulations, which typically include inspecting and cleaning watercraft before and after use.

The Neepawa Wildlife Association is active at the lake and has been involved in monitoring and improvement efforts, including spring test netting projects. Visitors have noted that discarded fishing line and garbage can occasionally be found around the access area, so paddlers should plan accordingly and pack out their waste.