There are many places where you can hire boats or canoes for trips on idyllic lakes.
At Gaustablikk Høyfjellshotell there are canoes for rent. Here you can paddle on idyllic Kvitåvatn where you always have a fantastic view of Gaustatoppen. Gaustablikk Høyfjellshotell also rents out boats.
Sandviken Camping is beautifully situated by Lake Tinnsjøen. Here you can rent both canoes and kayaks. The staff at Sandviken Camping can assist with transport if it is desired to paddle on less water than Tinnsjøen.
The Heavy Water Adventures arranges kayak trips both on Møsvatn and on Tinnsjøen. See https://www.heavywateradventures.com/ for more information.