Can't help with the yoga, but the nearest aquanatal class to you might be Concord sports centre, Monday 1.15 - 2.00. I think it's three pounds or so. Phone Sure Start on 2039307 for details if you'd like to find out more. And remember it's part of employment law that you get time off to attend appointments and classes so if you work you should still be able to get time off to attend!