Lake Moana-nui is an artificial lake formed by a small dam on a spring-fed creek on the south-western outskirts of Tokoroa. Access for the shore-based angler is excellent as the lake is surrounded by a recreational reserve. Moana-nui is stocked with rainbow trout and has a wild population of brown trout. Trout growth rates are rapid and the lake regularly produces fish over 3kg. Large trout can often be observed feeding on invertebrates in the shallow margins of the lake especially in the upper reaches.