What to do on a trip to Orlando (that doesn't involve theme parks!)

Ok so this is the everything BUT amusement parks post for Orlando, Florida. First up was our least successful Family Reunion day. We all got up to leave our house in Kissimme (just south of Orlando) in order to get to the natrual springs water park Weeki Wachee. We had 5 cars headed out there spaced out anywhere from 5 minutes to 30 minutes. Only the first TWO cars got in and they closed the parking lot and entrance so no other visitors would be allowed entry.... At this point we'd driven about 2 hours and were in unfamiliar territory. WHAT DO WE DO?