Chances are at some point in the outdoors, whether it's on a major expedition in the Himalayas or in a storm on top of Ben Nevis, you'll be miserable, you'll hate it and you'll want to be anywhere in the world except where you are.
Yet, you get back to the pub, you get home and hours and days later the times you remember are the hard bits, the stories you re-tell are the times you struggled, the times you felt at the lowest of lows. The hardest parts of an adventure are often the ones you remember and perhaps the ones you enjoy most....in retrospect..
