DW and I do not full time, but we are close to half time. Recently we took 2 weeks to do the approx. 450 Natchez Trace Parkway. We had several friends say aren't you going to be bored. We were not. We thought we would have plenty of time to read but we found that there were lots of things to do along the way that we did not now about.
One fun hobby that we have is geocaching. It can take you to a lot of interesting places. On this trip it took us to Alcorn State University. There was a geocache right outside of the College's historic chapel. After finding the cache we met the head of the maintenance department that gave us a personal tour of the chapel.
Have fun traveling.