I have been fishing Bisco for over 20 years and I think it is one of the best drive to lakes in north eastern Ontario. The walleye fishing is fantastic. There is also decent pike and perch fishing. Having a lake map and a good fishfinder will make the walleye fishing pretty easy. Helps to have a boat with a good size motor to get around because the lake is big.. The road in is not that bad, about 75k's of gravel and sand. Stayed at Ritchies and they are pretty good but I prefer Biscotasing sportsmans lodge. Great people and beauty cabins. Lots of walleye right off their dock. Good luck.
Kuha