In message , at
12:29:00 on Wed, 3 Aug 2011, Paul Cummins
remarked:
If you can direct me to any sea shore within an hour's drive of
Aylesbury - driving at legal speeds - I would be very grateful.

1) I said about an hour.

+ 50%

2) the furthers point in the UK from the sea is Church Flats Farm in Derbyshire,
which is some 75 miles.

For quite a bit of central England the nearest "sea" is the Wash, and
that's a bit inaccessible by road, in practice. For example, here in
Nottingham it's 60 miles pretty much due east to the Wash, and 1hr 39min
(as ever, timings by Google maps).

Sea (open salt water) from Aylesbury is probably Severn Beach

2hrs 14 mins

or Coryton on the Thames estuary.

1hr 31mins
--
Roland Perry