Canoe Hire Wye Travelling North Thailand In December?

Travelling north thailand in december? - canoe hire wye

Any idea or suggestion in Northern Thailand Bangkok in a week. Such as hiking, canoeing, etc., but on our own - not a group of tourists. What are the most beautiful areas? What is the best way to travel - rent a car or using public transport?
Then I go through Luang Prabang - the best way?
We travel at Christmas - we booked in advance?