The end of the trail, the top of the mountain, the mouth of the river. Reaching the end goal feels good, and the payoff is great. That’s why we do it.
Antonin Sertillanges once said “The reward of a work is to have produced it;…”. Therefore, the end itself is not the entire achievement, but rather it is the journey made and the effort exerted that creates the reward. If one were to leave their car and bike at home and walk for miles to reach their city hall, no one would consider it an impressive feat. They easily could have gotten there if they had wanted. But if that same person were to leave their car or bike and scale cliffs or heave through dense foliage to go where his car or bike could not carry him, the same would achieve an impressive feat. Accessibility is inversely proportional to the reward. The harder it is or the longer it takes to get, the greater the reward will be. Oddly enough, the greater the reward, the fewer people will be found there.
So, the journey is to be enjoyed as well as its ending. The fact that the path you are taking is paved by fewer and fewer footprints is not reason to give up. It is simply an illustration of your title as an adventurer. And as such, you are willing to go beyond where others have given up in order to reach your ultimate goals.