There is a common response to this question that some people see as a put down, but it is not a put down at all:
A few weeks ago I was part of a group exploring a cave, and I ended up doing a very mundane task that was nothing about exploration. The entrance to the cave was almost straight down before tapering off a little. It was extremely tight, with loose rocks and banks of very fine clay. Passing through it, both on entry and exit, was a challenge that usually resulted in a a lot of silt. We had dug out the very top a bit already. On our last dive of the day I went in to create as much havoc as I could so the silt would have time to settle before the next day. I went in carefully to about 130 feet, moving critical rocks out while I could still see. I hit my maximum planned depth (about 130 feet) and then began to move back upward, tearing out the banks of clay as much as I could and throwing it all behind me as I slowly exited. The silt I was creating eventually overtook me, of course, so all I could see was the very faint glow of the cave entrance above me. I will bet that sounds like pure Hell to most people, but for me it was one of the most fun dives of my life. That's just me.