Whereabouts are you staying? It’s a long old county and the traffic is usually appalling on a wet August day. (eg Eden would be a couple of hours drive from Lands End).
Do you have kids? What kind of things are you into? How tight a budget are you on?
Well known attractions include:
Eden – VERY expensive, hideously busy on a wet day, but worth doing once
Maritime Museum, Falmouth – good for a mooch about on a wet day, helps if you’re into boats (I know, this is insightful stuff)
Minack Theatre, Porthcurno – good value, stunning location, but outdoors only and won’t take long. And check their website first as they have a lot of things on (“plays” I think they’re called), when they’re closed to the general public.
Tate St Ives – great…. IF YOU LIKE ST IVES SCHOOL OF ART! Otherwise dreadful (though a cool building).
Slightly off the radar attractions include
The Telegraph Museum, Porthcurno – the most surprising attraction in Cornwall. Sounds dull as ditchwater, is absolutely fascinating. Brilliant for kids and adults alike, and it’s indoors (also just down the road from the Minack).
Seal Sanctuary, Gweek – my favourite attraction, but not cheap and pretty much all outdoors
Penlee Art Gallery, Penzance – the polar opposite of Tate St Ives
Barbara Hepworth Sculpture Garden, St Ives – run by Tate St Ives, but a little oasis of calm in the horror that is St Ives in summer
I work in the tourism industry in Cornwall (and have worked at half the places mentioned above), so feel free to drop me a line if you want any more info. snooozy AT gmx D0T com (yes, there are 3 “o” s)
If you’re bringing your bike, Poldice Valley is worth exploring…