A relatively new area of exploration, so called "Icheban Lake" lies between Big Creek and Thrift Harbour. 

Nine "series" of holes have been located within this lake, totaling near 13 separate holes.    Three systems are easily dove using back mounted tanks, with at least 3 more having side-mount potential.  Entry by shallow draft boat is only available within 1 1/2 hour of high tide at Big Creek.  Tides at the lake itself are delayed approx. 90 minutes.  Grace is out of view to the bottom left.