Here is a photo of a map of Charleston lake. At WestMeath you were asking about the lake and possible canoing areas.
As mentioned there is the bottom end of Runnings bay (from the islands down to the marsh) and there is also an area about 1/2 way up Runnings along the northWest shore called Pergatory cove that is motor boat free and is very sheltered.
I've also put this in the Charleston weekend thread...