Mount Fløien, Bergen
A good trip outside (well, uphill, actually) Bergen is Mount Floyen, which can be reached either on foot or by funicular. it's an excellent viewpoint over the city and a great place to hike the local woods - weather permitting of course (meaning: watch out for the infamous Bergen rain).
if the weather isn't good enough for hiking, you can still walk down into town: it's quite interesting to see how the architecture changes... it fels like you're stepping back in time... from modern to very old as you go.
The Funicular leaves from near the Fish Market every 30 minutes, from early in the morning until midnight. it is called 'Fløybanen'.
Hike down from Mt. Floien: getting to Mt. Floien is not exactly off the beaten track, as it offers some of the finest veiws of Bergen and is much visited for this reason. I got there, too, but I'd suggest one thing you might like, if you are not tired from sightseeing and the weather is fine. Get un there with cable car, but hike down - you'll spend some nice 40 minutes away from crowds in a forest with fine trails and nice views of bergen will be opening periodically to your eyes. You should take track number 4 from the top and then follow it downwards. Tiny waterfalls, greenery and nice views - that's what it is about.
You should go for a long walk at the mountains around Bergen. There are 7 of them so quite a lot choices for you. If you take the funicular from near the harbour, you will end up half way up at the second highest. From there, there are several paths you can take to go for a nice walk. I suggest you take any one of them and try to get lost for a bit. You won't really get lost actually because you will always find a way back to Bergen'. Just go towards the sea!
Welcome to Scandinavia, there is forest just by the edge of the city, in this case, here at the Floyen mountain, just few minutes walk from the top stop of the funicular train.
I was walking around the Floyen mountain and getting a bit further from the tourist place there is nice forest and small lake. In the summer you can even swim in those clear but cold water.
You can catch a train up here for only 35 Nok and only takes a few minutes to reach teh summit. on a clear day will reward you with stunning views of Bergen.
Well worth it and recommended