often manifested in first-time sites is that of assumption.
You know where Sheppey is, I know where Sheppey is, but a casual surfer from Whale Beach in Sydney probably wouldn't have a clue. You might find that a good few people in the UK don't know either - do you know where Benbecula is? The internet is a global medium, and believe it or not you'll have visitors from every country under the sun - show them some consideration, and locate yourself. One way of doing it - and I think it would work particularly well in your case - is to have a map on your homepage. You could do one like those buried treasure maps.
You've already identified the problem with the table, other than that........
1. You should put a copyright claim on the page bottoms.
2. Make the special font downloadable from the site, rather than linking out to another site - as it's in the public domain you'll have no distribution limitations.
3. I'm not a lover of 'click to enter' pages - they result in lots of missed opportunities. Far better to hook your visitors with a really interesting index page from the outset.
Otherwise I like your site - it's clean, fast (at least at the moment it is), and stylish. Well done.