if your aim is interesting pictures then it is best to immerse yourself in a place of interesting possibilities.
While that's fundamentally true, Walter, it's a bit of a question in my mind. I've been all over the place and strangely, some of my best stuff - if it's any good at all - is very local. So, if you find yourself in an exotic location - let's say a war zone (as I was myself as a journalist in Northern Ireland back in the day) or anywhere photogenic, how can you NOT take good pictures - they serve themselves up on a plate. All you have to do is click often enough and eventually you'll get something worthwhile.
But take a walk around your home town with a project in your head - let's say' 'recession', and try to capture the spirit of that place,, without endless images of knock-down sales bargains and closed-down shops. Now, that's a little more challenging than slow-shutter shots of milky waterfalls.