What is define slack tide?

Slack tide is the period of time when there is no apparent water movement in an estuary or tidal area, occurring between the ebb and flood tides. During slack tide, the water appears to be stationary, with no movement in any particular direction. This period usually lasts for about 20-30 minutes. It is a critical time for maritime navigation as vessels face increased risks during this period, especially in narrow channels or shallow areas. The slack tide occurs twice a day during the tidal cycle, and its timing can vary depending on the location and the gravitational pull of the moon and the sun. It is important for fishermen, sailors, and other boaters to be aware of the slack tide when planning their activities.