The canal towpath is now resurfaced as far north as the A44 and (after connecting to the Thames path at Osney) goes south to the new(ish) bakery Proof in Kennington which is an excellent coffee and pastry stop. Well recommended if you like traffic free pootling!
Love riding around Oxford, have family in Marston and a bike in their garage.
Few new places on this that I'll add to the 'to visit' place when I'm next up.
Plus one on the swim from University Parks to the Victoria arms being lovely, but you have to avoid the punts.