SCI-COM-E and ES3C will take place in Frankfurt, Germany.
Both meetings will take place at Goethe University Frankfurt.
Frankfurt is easily reachable from almost all destinations. It has an international airport, a rather well connected train station and is well connected to the German highway network.
Please note that all bookings have to be made by yourself. There are many possibilities in the vicinity of the campus – in general Frankfurt has a healthy infrastructure of hotels of all price ranges as well as a good public transport system to reach the campus.