In reply to James Oswald:
My advice is not to plan your whole trip around some limestone bolt-clipping in a holiday resort. I'd think about somewhere you really want to travel, and then work out how to fit some climbing in along the way.
You can go on climbing trips for the rest of your life, but you may not have the chance to spend months just travelling ever again.
You won't get much stimulation from climbing somewhere that's full of English-speaking climbers, but going to the arse end of nowhere, where pretty much no one has even seen a white guy before, could be a really fulfilling experience. If it was me, I'd maybe try to finish my trip with some climbing, but I wouldn't plan it around that. Trekking in the Himalayas or the Andes on the hand I would definitely plan a trip around.