Actually I've fished at the istokpoga park too they have a gorgeous dock that you can fish some lily pads at the end of it. It's worth going even if you ...more don't catch anything.
Only place I know of from land is at the canals on the east / southeast side of the lake. When I visit I have a hard time finding places to fish without renting ...more a boat. Trails end fishing resort is who I rent from to get on this lake.