OMISSION OF CERTAIN NAVIGATIONAL AIDS AND WRECKS Certain lights and wrecks have been omitted from this chart; for details of these, the larger scale charts and List of Lights should be consulted. CURRENTS The currents are of monsoonal origin, but tend to follow the trend of the coast.In December and January sets are north-westerly with rates of upto 1 knot.In July and August, when the SW Monsoon is well established, south easterly sets with rates of upto 2 knots are experienced. Exceptionally on-shore sets of upto 1,5 knots are experienced during the NE Monsoon and upto 3 knots during the NE Monsoon and upto 3 knots during the SW Monsoon. For further information see also Sailing Directions, Admiralty Current Atlases etc. FISHING STAKES Mariners are cautioned that fishing stakes and gear are liable to be met within depths of less than 20 metres.