A private four-hour cruise from Platis Gialos to Polyaigos reveals sheer limestone headlands, a 130m lighthouse, and Kalogeros Bay’s clear waters—ideal for snorkeling and short beach stops. This tour is private, accessible to most travelers, and focuses on swimming, coastal caves, and seaside relaxation.
A private four-hour cruise from Platis Gialos to Polyaigos reveals sheer limestone headlands, a 130m lighthouse, and Kalogeros Bay’s clear waters—ideal for snorkeling and short beach stops. This tour is private, accessible to most travelers, and focuses on swimming, coastal caves, and seaside relaxation.
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Operated by Sifnos Bloomarine · Sifnos, South Aegean
You step onto a low-slung motorboat at Platis Gialos, the harbor’s diesel hum slipping beneath the Aegean’s voice. The strait between Kytriani and Sifnos narrows, white church domes shrinking astern, and salt spray begins to braid the air. Polyaigos rises as a weathered cliff and low plateau—the island’s limestone shoulders cut by wave-sculpted gullies and sea caves.
easy.
4 hours.
Suitable for travelers in average fitness—short swims and gentle boat transfers are required
The tour departs from Platis Gialos marina; dress for easy boarding and arrive 15 minutes early.
Yes—snorkeling equipment is included, but you can bring your own mask or fins for comfort.
Yes—short swims are optional and the skipper supports safe boarding; non-swimmers should wear a lifejacket during water transfers.
Light snacks, bottled water and beer are listed as inclusions; bring any personal beverage preferences.
Polyaigos was sparsely used for grazing and appears on sailors’ charts as a navigational landmark; its lighthouse has guided vessels in the Aegean for decades.
The island’s sparse vegetation and clear waters are vulnerable to boat traffic and litter—use reef-safe products and avoid leaving any waste ashore.
Sifnos Bloomarine operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.




Book with Sifnos Bloomarine
Book directly with Sifnos Bloomarine for the best rates and real-time scheduling.
Reserve Now