The full distance from Benson to Lechlade (limit of navigation on the river) is 52 miles with 19 locks. This would take about 15 hours each way, so is probably beyond what we can do in a weekend, particularly if participants want any time to spend exploring the city of Oxford. However we can get part of the way. Herewith an outline plan:
Thursday 1st or Friday morning 2nd April:
Assemble and launch at Benson. Good marina facilities. Cost not yet ascertained – probably dependent on number of participants. Car and trailer parking nearby. Thursday supper could be in nearby pub.
Friday: Motor up river to Oxford. 21 miles with 7 locks taking about 6 hours.
Overnight at Oxford.
Saturday: Time to see Oxford for those who wish. Alternatively continue up river. Mooring with pubs nearby at Eynsham (6 miles), Ferryman Inn (9 miles), Shifford (14 miles) or Radcot (24 miles).
Overnight at mooring near one of these pubs.
Sunday: Return down river, probably past Oxford and on to Abingdon (up to 23 miles) for overnight mooring.
Monday: Continue down river to Benson (12 miles) in good time to haul out and drive home.
Note that an Environment Agency licence for the Thames will be required. This can be purchased in advance or on the river at one of the first locks. Licence costs are: 1-day £!5.50; 15-days £56.50; 31 days £66.50.
One limiting factor is the low bridge at Oxford. Osney bridge under normal river conditions has clearance of 2.28 metres (7ft 6 ins), so leave the mast at home!
Water and toilet emptying facilities at 3 locks en route. Petrol supplies at Oxford. Shopping at Abingdon and Oxford.
Bill