Translation of menstruation in German

We returned to the former capital of the South at dawn and were dropped next to our place. We had a very nice day all in all, although it was very touristy. We felt that we have seen enough of the area.
Just as we finished exploring the temple and were about to leave the big tourist buses arrived. We listened to a Cambodian song played by a group of handicapped musicians and left to see other sites.
The next day we had to take the bus in order to get back to the airport in Calama. When we arrived at the airport was empty and no counter was open yet. We had to wait for 4 hours.