Thanks, I take your point on asking about places to avoid, but until we get out on the boat and get the feel for the canals, its difficult to imagine what places are going to be like when you look on the Nicholson's guide. On the yacht it was second nature to 'guess' what new ports were going to be like - we spent two years sailing from Edinburgh to Messalonghi in Greece - from the various pilot books but as a total canal newbie we just do not know what to expect. After a few days out, I am sure we will pick it up.
Bit concerned over the 'bit congested'. Need to get our 'ettiquette' right. As a Yottie you just raft up. Guess that's frowned upon from everything I read here?