VISA policy
Poland is a member of European Union and Schengen Area, so for participants from EU (and countries with EU visa-free travel arrangements), only general traveling rules and conditions are applied.
Participants from countries without agreements with EU should apply for VISA (gov.pl/web/diplomacy/visas) and contact their local embassy for further details.
Currency
The official currency of Poland is the Polish Zloty (PLN). Mastercard and Visa debit/credit cards are widely accepted.