Well, according to the GPS track we got to here:     This is well beyond the Red House and the boat dock, and close to the "safe limit of navigation" on the ANT map.   We grounded on the east side as we tried to pass a willow tree growing out from the west bank. Fairly sure that if we had cut the tree back a bit we could have got through in deeper water, but it looked much shallower a short distance ahead, and as there were only two of us to poll off if (when) we got stuck, we decided it