As others have said this is a fantastic circular walk , where you can walk along the sea one way and cut acrioss the spit the other. However be careful where you start if you want a pub lunch halfway round. I would recommend starting at Lymington as the pub there is awful, stop at KeyHaven at the Gun which is not great but is certailnly much better. Also by doing it this way round , you can explore the spit and Hurst castle as an extension. If that is too far ( 6mile altogether) you can take a mile off by returning to KeyHaven from the Castle on the ferry boat. The other option for eating is to visit teh castle and try their lovely little cafe.
Enjoy it is a great walk with lovely views and fantastic bid life.
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