DIVING AND SWIMMING
Diving in Langstone Harbour is strictly controlled and is only permitted with permission of the Harbour Master.
Except in an emergency, no person shall dive or engage in other underwater activities unless the Harbour Master has been notified of the time and place at which such activities are to take place and their expected duration, at least two hours before they are due to commence.
No person shall bathe, swim, dive or engage in any other underwater activities except with the permission of the Harbour Master.
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The Master of any vessel engaged in diving operations in the harbour is expected to exhibit Alpha flag for the duration of the diving operations, and any person supervising diving operations on shore should do the same to notify any approaching or passing vessel.
Swimming in Langstone Harbour should not take place in navigable channels and is subject to controls.
The Solent is an extremely busy waterway and swimming across the Solent is not just another open water swim and should not be undertaken without considerable preparation.