The map below shows the routes to Belwood Lake. I go up 25 from the 401 until I come to Hwy 7 in Acton. I go East to Rockwood. Highway 7 bears right. After you bear right don't make any turns just keep going the same direction sort of North West to Brucedale. Margaret tells us this is Country Road 27. Unfortunately it is not labeled on this map. Go through Brucedale till you reach 18 where you make a right turn.
The trickest part is when you have to turn from 18 in towards the lake. Go down Ninth Street, bear left then right and when you come to the 'T" intersection which is quite close to the water turn left. At the end of the road you will see the Belwood Lake Sailing Club.
As you can see from the map there are a number of ways one can reach Belwood Lake depending on your origin. I hope this helps. (PKK)
The green line is the
route I take. The black
lines are the routes described
by Margaret Hull. Where the black lines merge with the green
lines our routes coincide.