Can anyone tell me what cycling is like around the area. I'm coming tomorrow with the family and would like to leave the car and just use bikes for the week. I have a competent 10 year old cyclist, she can cycle 20 miles on the flat but much less if hilly. I notice there is a cycle route running alongside the canal. Is this safe (ish)? Are the roads to Crickhowell and other local towns/villages reasonably quiet?