Lake Irwin was created when the Whitemud River was dammed. Services but not opportunities are limited. A boat launch is available along with a public washroom. The entire lake is ringed with Crown land, so visitors can walk around the lakeshore. The north trail leading to the dam and the east road to the spillway are frequently used as walking trails.
Fishing is popular here as the lake is stocked with pickerel, and northern pike exist naturally.