看是遊客如果入境Croatia時有48小時內的pcr 檢測陰性結果的話,入境後才可以免隔離
//These persons are not subject to a quarantine / self-isolation measure if they present a negative PCR result of a nasal and throat swab for SARS-Cov-2 at the border crossing point, which is not older than 48 hours (counting from the time of taking the swab to arriving at the border crossing point).
https://mup.gov.hr/uzg-covid/english/286212