Sometimes, there are pictures that you really want to get - that you have been planning to take for ages - that require this light here, and this piece of water there, and those people at the back, and this object at the front, and so on...
And sometimes, though the result is almost always worth the trip, you have to go through pretty hard times in order to get them: stay in the cold wind for hours, get a blocked back or a sore neck sitting in an awkward position, or get yourself drenched (or your camera)!
Hard time being a photographer