Thanks for sending us the program schedule. However, there's a trip to Festiwal Rzeźby z Piasku (Przymorze) in the schedule. DO you mind what that is in English? I tried Googling it but the results were all in Polish.
"Festiwal Rzeźby z Piasku" means Festival of Sand Sculptures and it takes palce on beach in Przymorze (district of Gdańsk). Here you can see some photos from previous year: http://www.rzezbyzpiasku.pl/?r=2009&s=galeria
BTW A few weeks ago I've added on my userpage some events, which take place around Wikimania: http://wikimania2010.wikimedia.org/wiki/User:Leinad
-- Leinad