Translation of subarrendar

Since it had no wind and no turbulences at all we landed right on time. I had an entire afternoon until my connection to Havana and decided to spend it in the duty free shops, or in the restaurants.
Please write me from your home as soon as your are back. My Spanish is better than that of most Americans, but my English is worse than that of most people here. It is a strange position that I am in.
Puerto Madryn was a boring city, but it was the hub to see the Peninsula Valdes, a nature reserve listed as a World Heritage site by UNESCO. We did not know what to expect but new that we would see Pinguins