Guelph lake has a bit of everything. Pike, bass, crappie, perch, and a fair number of carp. Electric motor only, so fishing pressure is far less from the GTA crowd then say Belwood. Nice camping/beaches as well. I've never been skunked there, smallmouth/largemouth in 3lb range, snot rockets, a nice population of perch/crappie (Big crappie). I def like it as a day trip if you live in GTA area. Water levers later on in the summer can be quite low, as it is a reservoir and likley affects the fishing some. Used to have ice fishing there.