Tidal Information Places Lat Long Heights in meters above datum N E MHWS MHWN MLWN MLWS Calabar River Approach 4-20 8-22 2.0 1.7 0.5 0.2 FOR MORE INFORMATION, REFER TO NNP 1 (TIDAL PREDICTIONS FOR NIGERIAN PORTS AND RIVER CHANNELS). OR CONTACT THE NHA WEBSITE AT https://nha.gov.ng/tides/