We have brought a Narrowboat from Google docks to the Trent via Trent falls. Provided you have a decently powered and recently checked engine and avoid the strongest moments in the tides you can easily do it. (We went out too early on the advice of the Google lock keeper, sharing with a German freighter, and were going backwards on the end of the flood tide at one point, despite our Gardiner goon flat out, managed it by swapping to the inside of the slight bend. Sweaty moments!) Do take a wide swing around the marker post at the ‘Falls’ as the sandbanks are very shallow and even a small draught boat will ground there. VHF radio and phone a must. Keadby lockie only answered the phone not the radio.