The hotels mentioned in the file above are offering special rates for PEDS6 participants. If you don't find one available that interests you, search for other hotels in Coimbra area on any hotel web platform (Booking) - there are several hotels at Coimbra area!
Within Coimbra there are public transports, taxis, web urban transport platforms (Uber), electric bikes, etc... so it will be easy to find a way of going from the hotel to ESAC