My friends will be visiting me in US from abroad, and I'd like to travel with them. We are thinking of travelling across many states. One concern that we have is transportation, because none of us have car/driving license in US. I know there are many public transportation for city to another city, but we would like to travel to remote cottages away from cities as well.
My question is: What are the methods of transportation for people in US without a car to visit rural areas?
I'm looking for a general recommendations/tips on travelling without a car. I'm looking for resources like Greyhound or Uber, though I know most of Greyhound travel is limited to bigger cities. I'm doubtful about Uber as well, especially in remote areas.