My friends and I would ride our bikes to Six Flags and the Wet and Wild on our bikes 2-3 times a week every summer. We had season passes that we bought with our lawnmowing money. 30 mile round trip.
The summer before they were entering 7th or 8th grade, my brother and his friend rode their bikes 20 miles (one way) to the County Library... they took a different route home and made a big loop.