From Maritsa (LGRD) to Naxos (LGNX) with stop and go's at Ippokratis (LGKO), Kalymnos (LGKY) and Leros (LGLE)
a virtual vacation around the Agean Sea without the need of PCR or Flow tests and you don't need to be double vaccinated.
Don't forget you passport, swimsuit and sun screen though...