One of my favourite hobbies is hiking. Leaving the car behind for one day and taking a long walk through nature. Simple and cheap. All you need is a good pair of shoes, something to drink (and eat) and… a good map!
When it comes to maps, a lot of companies appear with high prices. Google Earth / Maps has made a huge step bringing these kind of data to any people (with a good Internet connection and a good browser). However, it’s hard to print and it’s street-oriented, rather than Nature-oriented, which means that Google bought only detailed maps of the cities, the places that I try to avoid when hiking. :)
I’ve found a nice site with maps for many many countries. It has all Portuguese maps. They were made by the Portuguese Army and can be acquired on paper for about 5 €. This is a nice solution for hiking lovers: choose the appropriate map on the site and then go to Army and buy a high quality version on paper.