The smell of cut grass and being outside
Spending time with friends or being alone
The Challenge of a new course or a new skill learned
Being able to work on my game on my own and most anywhere I can swing/putt (an actual club or mythical)
Seeing your hard work pay off
Bombing a drive off the tee, nailing an approach, running in a long putt
A beer on the course is very refreshing
And most that know me would laugh but I actually like getting up for an early tee time. Normally, if I am up early I haven't been to bed (or at least that was me before my daughter was born). There is just something about getting up in the morning and getting out there on a course.