Looking at forecast, negligible wind for weekend.!!! Would I be right that you need at least 5 knots of wind to make headway against river flow to sail at upper thames?
Am just wondering if all the packing up and making journey will be worthwhile for a drifter, especially if drifting against river flow is not possible?
Current should be moderate. You can sail on the river in pretty much any breeze, it does make it a little more tricky. Makes the Saturday night cocktails all the more enjoyable!