Your best bet would be to get speaking to people at the indoor wall. The chances are that most of them are just climbing indoors when they can't get outside. Try to find people climbing at a similar level to yourself. I'm not saying that people who climb harder won't want to go outside with you, but the venues worth visiting may well be different to those operating at harder grades, so there may not be as much for you to do.If you have your own pad, it will help.