In reply to Reach>Talent:
I think just making sure you're in good shape is enough, if you want to have an enjoyable trip and do some good routes. If you're a bit more 'serious' i.e. having specific goals, you'd need to tailor your training to them (but that doesn't sound like a holiday to me "If I don't get my 7c redpoint project from last year it will be a wasted trip and I'll be depressed").
I guess you're sport climbing, so do lots of routes indoors, maybe mixing up sessions of stamina (e.g. 20 or 30 routes in blocks of 6/7) with some redpointing for PE. Building up a tiny bit more finger strength probably isn't time well spent (unless it's a really critical weakness I guess) so maybe replace some of the bouldering for more time with a rope on. But a bit of fingery bouldering now and then will keep your fingers strong.
As long as you're fit and enthusiastic and the routes are good you'll have a great time. Everywhere has different styles and its own take on the grading system so I think grade obsession is pretty unhelpful when going somewhere new. It could lead you to spending all week trying to redpoint the shittest route in the area just because it's a soft touch (aka completely wasting your time).
Look through the guides, get inspired, and make sure you're pretty fit - job done.