Kirk was the ultimate explorer and frontiersman (as evidenced by this quote):
"You could feel the wind at your back, about you - the sounds of the sea beneath you," Kirk says about his seafaring forefathers in the original series episode The Ultimate Computer. "And even if you take away the wind and the water, it's still the same. The ship is yours, you can feel her, and the stars are still there."
Well, before I go, I'd like to leave you with a picture of Kirk holding a penis shaped cave rock. Peace out.