We arrived at Jannock and were off, heading North, by 9:45. By eck it's cold at tiller. There was a very strong northerly wind that cut right through and within the hour insult was added to injury by the first downpour. The weather forecasters obviously got it wrong when they stated Monday would be the best day for weather during the bank holiday weekend. We cruised up through Bugbrooke, Heyford and Weedon with very little to comment on until we reached Buckby locks. The boat that had been following us since Heyford decided to wind between Diamond bridge (19) and Muscot Mill Bridge (18) and so it looked as though we would be doing another flight solo. Every lock had lots of foamy bubbles floating in it which multiplied when the paddles were opened. Brenda discovered that if she squashed the foam between the boat and the offside lock wall she could shoot it about using the exhaust as she left the lock. We met three southbound boats but also had two downpours during the flight and my waterproofs were wet inside as well as out because I was so warm working the flight. Finally cleared the top lock by just after 3pm and moored up for the next four days. Did a Di Blasi run back to Gayton (17 miles) to collect the car and then had dinner aboard Jannock before setting off homeward.