The Middle Level has a long and complicated history, largely concerned with land drainage over the centuries but also including boat transport. But we were in for a surprise as soon as we phoned up to arrange to go through Stanground Sluice. Did we know that the lock at Salters Lode (at the other end, joining onto the Great Ouse) was closed, awaiting completion of the new hydraulic sluice gate there? No, that was news to us; how long would it take? Apparently it had been scheduled for completion in December - it was now mid-April, but they thought it should be done in a week or so!
We hadn't planned to do more than just go 'straight through', but we could always dawdle a bit more - a little more recuperation from the 'flu would not go amiss . . .