Check out the website for the ability to register your child. You can keep track of all the activities you've done online and unlock games and other goodies as a reward, or download and print off a list to tick them off as you go. My 11 year old has completed virtually all of them, however my 6 year old has only ticked off about a quarter so there is plenty there to keep him busy. Plan a holiday or a day out around and activity or just do the ones close to home.
As well as providing the list, the National Trust have YouTube videos to help get you started. They're virtually all free and simple and will encourage children to explore their actual surroundings rather than merely their Minecraft ones.
Here are some of my pics:
|22. Explore inside a tree|
|4. Build a den|