Before the weather went bad, I did a lot of servicing of my geocaches by bicycle. I have several on the Constitution Trail here in Bloomington/Normal, Illinois, and check them a lot by bike because it's the easiest way to check them relatively fast and get some exercise at the same time. I also have a lot of caches in the country south of Bloomington I check on regularly by bicycle. I could probably get in a 60 or 70 mile ride by checking them all the same day. Have never done that but think I'll try that next spring. I'm sure it would be at least 70 if I went to the furtherest north on the Constitution Trail GC1T3XTand then to the ones in Lexington, Illinois; GC1CXWK and GC1DHNC.