Why do you want to bring 17k € in cash? That raises all sorts of eyebrows.

Is it not feasible to pay with credit card/debit card? I remember the last time i was outside Europe i could just withdraw local currency as needed at ATMs. It would just subtract the converted amount in € off my account.

Anyway, i am pretty sure you need to declare that much cash when entering.

Can we fucking throw them out please, straight up treason to Europe.