Bastards, you made me listen to The Witcher III OST. And then I remembered the best bits aren't even on it. Two bars and i'm pining for the whole game.
Anyway, there are a few pretty unassuming numbers that work amazingly well coming and going when you're exploring. These are from a video that contains nearly all the No Man's Land/Velen tracks, which are brilliantly evocative of Gerald's strength and purpose in this desperate war-torn land.
How many OST's do you know that were plundered by Massive Attack? Listen to the whole soundtrack and slot these tracks in, you might see what I'm getting at.
......Hmmm.
...2 minutes 20 onwards....
....Hmmm?
Hmmm!!
Go back to the bare theme, move the cello line to a bassline, add the clappy percussion that's pepperred all over the soundtrack... and some female vocals from Skellige, chop it up a bit...