Kit Walsby: There is a lovely little sea water lake in Alverstoke.
Sheltered from the sea winds this is a good place to get used to salt water swimming without the dangers of tides and currents.
Ian Backhouse: Access from the old railway line cycle/footpath north of Clayhall Road, or from Little Anglesey Road, which can flood at high tides. The west end of the lake is rather shallow but because it is confined behind a tidal weir the water can get quite warm.The weir beneath the old railway bridge is a regular gathering point for the local youth to swim and jump into the water.
Occasional submerged branches and even supermarket trolleys are the only hazards I am aware of.
Simon Thornton: Just back from my first swim here. I swim at Havant pool on Mon evenings, and regularly do 120 lengths, but training for the Bournemouth Pier to Pier in July, so need a bIt of OW experience! I swam 4 lengths today. Does anyone know the distance of Alverstoke lake; weir/bridge end to the wall at the other end? Thanks, Simon.