Cill gate at Southsea Marina

Southsea Marina has an automatic tidal ‘cill gate’ which opens and closes automatically at certain states of the tide to protect the marina’s water depth. 

The cill gate gives approximately six hours of access per tidal cycle. See Southsea’s tides and cill gate opening times here. Please be aware that times are approximate and can be affected by weather conditions and air pressure. 

The marina entrance is seven metres wide. Red and green lights at the marina’s entrance show if the tidal gate is up or down. They are not used to control traffic. 

Red light - tidal gate up. No access. 

Green light - tidal gate down. Access allowed. 

When entering the marina, the vessel travelling with the tide takes priority over a vessel travelling in the opposite direction.