WaterNav Grand Ring

WaterNav Grand Ring is the definitive guide and map for the Grand Union Canal – Oxford Canal – River Thames cruising ring (The 'Grand Ring') for boaters, ramblers and cyclists. ONLY SUITABLE FOR COMPATIBLE ANDROID DEVICES: requires Android 2. 3. 6 or later; Also at least 11. 2 Mb of AVAILABLE internal (RAM) memory plus an additional minimum 1.