The social program includes:

During the lunch breaks on Friday and Saturday,
or at another convenient time during the conference,
visits to Van Gogh Museum (on one day),
and Rijksmuseum (on the other day).

During the evenings on Friday and Saturday, 
a 3-course welcome dinner with wine/beer on Friday,
and (most likely) a visit to a Greek pub with music on Saturday
(the first glass of retzina and one plate of humus are on IPSI,
and the rest is on the cash bar basis).