Maikätzchen my kætzchen and Grrr with Brrr are joining forces this year for an extra long rave at Kater! Starting the evening of May 1st / Labor Day until Monday morning Spring edition is right around the corner Come early and stay late! Limited presale. More tickets are available at the club. A presale ticket does not guarantee entry, and the club reserves the right to refuse admission. In case of refusal, the ticket price will be refunded via RA (excluding fees). 5€ re-entry fee may apply. Please note that the non-smoking regulations apply in the club. Smoking is only allowed in the designated outdoor area.