/ i need a book :)
You can use http://www.ukclimbing.com/logbook/map/ to search for crags, just specify climbing type 'sport'. You'll still need to get a guidebook for the area with descriptions of the routes. But you're best off using either something like UKC, or the Crag Guide to England & Wales which Martin recommends to find which areas you want to climb in first.
Is there a particular part of the UK you will be in, maybe we can recommend some crags?
This might be useful too http://www.sportsclimbs.co.uk/ .
You can tell whether it's a sport or trad climb from what the grade looks like - they use different grading systems. This might help :) http://www.ukclimbing.com/databases/crags/comptable.html
> Dont think it has full route descriptions but is good to have in the car.
I've got a few JW guides and quite like them but that is a bit dubious IMO.
It's listing the actual surface of indoor walls but nowhere does it mention the date of publication and therefore the usefulness of the info it contains.
Obviously if they list it as 9 years old it may impact sales, but then perhaps the secret is to publish books that can be kept current more easily.
As the OP is asking about sport climbing it's even more important.
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