The bus rides here have offered incredible views of the countryside- the hills/mountains are fantastically lush and green.
Anywho, Rio Claro is a beautiful nature reserve, that has one hotel, which covers all your meals and offers lots of activites- kayaking, tubing, cave exploring, swimming, rafting, etc. During our 24 hours there, we swam, explored, hiked and went tubing. It was the perfect 'nature' stop between big cities.
On a side note: the front gate is about 2kms from the hotel reception area, so when it came time for us to leave (giant backpacks in tow), we hitched a ride to the front gate with some old lady ecological group. They we're going to the front gate in the hotel truck bed. All the old ladies needed help into the truck, so we helped load and unload about 20 little old Colombian ladies. They were so intrigued by our travel crew- impressed we were traveling without any men, impressed with our Spanish, and generally interested in chating with us. The 10 minute ride with them was kind of hysterical. They were all very nice and very gracious, as our crew single handledly got each one in and out of the truck bed.
Overall though, we stayed in a nice open air room, overlooking the river, no wifi and it was mostly just a quiet tranquil place. It was a great overnight day trip for our quartet.