Do what you want, your legs aren't going to fall off from riding 30 miles two days in a row.

There have been involved discussions about what counts as a "ride". Generally, if you go to the store, come back home, watch TV for 20 minutes, then go somewhere else, that's two rides. But if you ride 30 miles and hang around somewhere else a while and then come home, that's one ride. If you ride 1200k in 90 hours, it counts as one ride, even though you manage to sneak in some overnight sleeping along the way. Most people don't go more than 30-50 miles without a stop, so most people that ride 100 miles will have a few stops along the way. The exception would probably be people trying to do that in 4 or 5 hours.