Don't know about off-roading in a Freelander,you don't want to go too far from where the RAC Transit can get to you.
JEEP rules.

If it's quiet lanes (especially mid-week) you're after,anywhere in the North Yorks Moors national park. From Whitby across to Egton,Goathland ("Heartbeat" country) Glaisdale,the lovely Rosedale Abbey,Kirkbymoorside,Helmsley,the even more lovely Reivaulx Abbey,Ripon,Bedale,Leyburn,up to Downholme then across Swaledale through Reeth,Crackpot and Askrigg to Aysgarth.
Good bakery in Helmsley (walk towards the castle,your nose will alert you when the bakery is close by) Great pork and apple pies from Appletons butchers in Ripon and excellent food at The Wensleydale Heifer in West Witton near Aysgarth. Please don't get the idea that I just ride around stuffing my face,by the way.
As for chemo,SWMBO had Leukaemia a few years back and, thanks to a Bone Marrow transplant and lots of chemo,she's as right as a bobbin now

Twice as fierce,but right as a bobbin.