I live in the N of Scotland and it has indeed been cold and wet. Am not defending the owner - he should supply facilities as advertised. In an ideal world, he would also have mentioned the caravans. We can all be wise after the event, but, it's a good idea to check Google Earth so as to see overall situation, if you can, before booking.
Am just trying to help with situation you find yourself in. PLEASE forgive me if you know all this already, but:
Stuffing wet boots with newspapers for a couple of hours does help. As does leaving them close to - but not right next to - a source of heat, if possible. Renew newspaper treatment a couple of times, if you can. Then leave them fairly close to wood burner overnight.
I quite agree with earlier poster that one room with doors and windows closed (very important!) should dry clothes and boots overnight. Put them on clothes hangers and hang them as high up as possible before you go to bed - from (open) curtain rails or picture hooks if need be. Or drape them over a clothes rack, or even over the backs of wooden dining chairs, in the warm room, before you go to bed. Make sure that they can't fall on top of the wood-burner.
Get the woodburner is going properly. The owner should have left you a users' manual. This does not necessarily mean a pretty blaze, alas - it rather depends on the design. What you need to do is make sure that plenty of air gets in at the bottom, so that the fire burns briskly, but also to make sure that all the heat does NOT escape straight up the chimney. This means adjusting both the top and bottom air inlet/smoke outlet (damper) controls. The aim is to have a well-filled, glowing firebox, with the wood burning cleanly and heat radiating from the ironwork of the stove. A properly burning wood fire should not spit or smoke. (To avoid this happening when putting fresh wood on the fire, open the top smoke outlet (damper) for a few seconds when you open the fire door, then partially close it . NEVER, EVER close the top damper completely; the smoke and combustion gases need somewhere to escape.) Again, depending on design, you might have to clean out the ash at the bottom of the fire every day or every other day, to make sure it does not clog the bottom air inlet.
Put an appropriate amount of wood into the fire before you go to bed, make sure that the top smoke outlet/damper is adjusted to let smoke and gases escape and the bottom air inlet adjusted to let the fire burn gently, not roar away. Close the doors and retire, and your clothes/boots left in the room should be much drier in the morning. And you'll have a warm room to sit in.
To earlier poster, I'm afraid that wet clothes and boots draped around the place are a feature of Highland country cottage life, even for people who live up here. It's very normal, when visiting a friend's house, to take off outdoor boots and ask 'where shall I hang my wet coat?'. Most people have somewhere set aside for this - we have a pole over the bath so clothes can drip and dry out in our (warm) bathroom. A friend of mine has a drying cupboard - a big cupboard with a plug-in dehumidifier inside, etc etc.
Perhaps the cottage owner might consider that sort of thing for the future? Heated towel-rails and dehumidifiers both cost very little to run.