Ebb and Neap are two types of tides that occur in the ocean. Ebb tides are when the water level is lower than normal, while Neap tides are when the water level is higher than normal. These tides occur in a regular cycle, usually twice a month, and are caused by the gravitational pull of the moon and sun. The cycle of Ebb and Neap tides is important for navigation and fishing, as it can help predict when the water level will be higher or lower.