Instructions on how to get the certificate:

Please note: Entry requires official and functioning EU COVID-19 certificate which proofs full vaccination (two shots), recent recovery from COVID-19 or negative test result from within the past 72 hrs. Prepare to show ID at the door.

Fin: https://www.kanta.fi/koronatodistus
Eng: https://www.kanta.fi/en/covid-19-certificate

Doors: 22-05
Free before 23 / 10€ after. 3,5€ sec fee.