St. Johns River Entrance is a river entrance at the mouth of the St. Johns River on the northeast Florida coast, leading from the Atlantic Ocean to the Port of Jacksonville and the river system inland. The tide is semidiurnal, with a mean range of 4.53 ft (1.38 m) at the Mayport (Bar Pilots Dock) station.
- Type
- River entrance
- Location
- Florida, United States
- Setting
- At the mouth of the St. Johns River on the northeast Florida coast, leading from the Atlantic Ocean to the Port of Jacksonville and the river system inland
- Tidal range
- The tide is semidiurnal, with a mean range of 4.53 ft (1.38 m) at the Mayport (Bar Pilots Dock) station.
- Notable
- Naval Station Mayport, a US Atlantic Fleet base, occupies the south side of the entrance (US Navy).
