Len Yes , once you get up on the top of the Downs you can see from Purbeck/Swanage/ Poole harbour one way , right over to Portsmouth the other , then pretty much half way to France.
We are lucky, but then we dont have much in the way of shops, hospitals (1 small one) , motorways ( none at all ),and you have to get a boat to go anywhere .... (I love it!) .
We do have lots of lovely local grown, fished and reared food though.. but a lot of our water currently comes from the mainland (although it doesnt need to in emergency ..)