NEW ZEALAND HYDROGRAPHIC AUTHORITY NZ406811 - NZ681 - SOUTH ISLAND - SOUTH COAST - RIVERTON/APARIMA INDEX: SATELLITE DERIVED POSITIONS NAVIGATIONAL AIDS MARINE FARMS TIDAL STREAMS SATELLITE DERIVED POSITIONS Positions obtained from satellite navigation systems referred to WGS 84 Datum can be plotted directly onto this chart. Caution must be exercised in the transfer of geographical positions to other charts not in terms of WGS 84 Datum. NAVIGATIONAL AIDS Certain lights, buoys and beacons in the inner waters and channels are not shown on this chart. For these the larger scale charts must be consulted. MARINE FARMS Marine Farms presenting a hazard to navigation may be encountered in inshore waters. These farms are generally marked by buoys, beacons and lights. Mariners are warned that not all farms may be shown on this chart. TIDAL STREAMS Weather conditions may considerably affect tidal streams in the Foveaux Strait. END OF FILE