Hydra, Poros and Egina Day Cruise from Athens Take a cruise to the fabulous Greek islands of Hydra, Poros and Egina for a relaxing day on the sea. With all your transport and transfers organized, you can sit back and enjoy your leisurely cruise from Piraeus, with free time on each island to explore. Special Offer - Children aged 12 years and under travel free during July and August - BOOK NOW! Starting from USD $140.95 per person