Have no idea for the holiday? You can try to go out. Yes, outdoor. It should be lots of funs right there. If you tired with your office and works, travel and outdoor fun could draw a big, big smile on your face. And you will get full happiness, if only you enjoy the nature with the outdoor fun.
Camping and hiking are good ideas. If you want more adventure, get a place that far from your home and office. You will get a bonus fun from the travelling.
Those activities should take more than one day. It means, you should prepare tents. May be there are some inn or motel. But, tent is more exciting for your new outdoor lifestyle. Or, sleeping bag! The most adventurous bed.
One important thing, you should forget your urban lifestyle. And, if possible, leave all your gadgets at home. Except the funnest one: camera!