The Alumni Pavilion is located at ETH Zentrum between the Polybahn and the cafeteria. The entrance can be found by going down the stairs to the cafeteria.
Map
Enjoy the relaxed Cuban atmosphere with good music - Salsa, Son, Bolero and Cha-Cha-Chà - refreshing drinks and a deckchair :)
Door opening at 20h, start of music - Cuban style... :D