Sifnos is a standout among the Cycladic islands when it comes to cruises and boat tours. Its rugged coastline, hidden coves, and crystal-clear waters make it an ideal destination for exploring by sea. What sets Sifnos apart is the chance to experience its secluded beaches, historic monasteries, and authentic villages from the water, away from the crowds. One of our favorite options is the Private Speedboat Cruise to the South Coast of Sifnos, which offers personalized views of the island’s rock formations and quiet churches. For a broader adventure, the Explore Polyaigos and Kimolos on a Private Cruise provides access to untouched islands and turquoise waters. And if you’re willing to venture further afield, the Milos: South Coast Private RIB Cruise with Kleftiko Visit showcases the dramatic landscapes of nearby Milos, including the famous Kleftiko caves.
This guide will walk you through three top cruises and boat experiences—each tailored to different interests and styles—so you can pick the perfect way to see these beautiful Greek islands from the water.
Quick Overview
Below, we review three standout cruises and boat tours around Sifnos and neighboring islands:
- The Private Speedboat Cruise to the South Coast of Sifnos offers a private, 3-hour ride exploring secluded beaches and historic sites. (More details)
- The Milos: South Coast Private RIB Cruise with Kleftiko Visit is a six-hour trip that includes swimming, sightseeing, and the iconic Kleftiko caves. (More details)
- The Explore Polyaigos and Kimolos on a Private Cruise lets you visit three islands with swimming stops and cultural exploration, perfect for a full-day escape. (More details)
Now, let’s dive into each experience in detail.
1. Private Speedboat Cruise to the South Coast of Sifnos Island
At number one, this private speedboat tour provides a personalized glimpse into Sifnos’s dramatic southern coast. With an experienced captain, you’ll explore secluded beaches, visit charming villages, and see several rock-hewn churches perched precariously on the cliffs. The tour lasts just three hours, making it perfect for a half-day escape, yet you’ll cover enough ground to experience the island’s natural beauty and historical sites.
What makes this tour special is its customization: you can tailor the trip to focus on swimming, sightseeing, or relaxing in peaceful coves. The boat is exclusively for your group—up to four people—so you won’t be crowded and can ask your captain to take you to spots off the usual tourist trail. Expect to swim in crystal-clear waters, explore small monasteries, and see villages that are accessible only by sea.
While the price of $797 might seem high, consider it as a private luxury experience. It’s ideal for couples, families, or friends who want flexibility and privacy. The ratings are solid (4/5 from three reviews), with travelers appreciating the personalized attention and quiet beauty.
Bottom Line: An excellent choice if you value privacy, flexibility, and the opportunity to explore less touristy parts of Sifnos from the water.
2. Milos: South Coast Private RIB Cruise with Kleftiko Visit
Number two on our list is the Milos South Coast RIB Cruise, a six-hour adventure that combines the thrill of a fast boat with the chance to see some of Greece’s most photographic landscapes. This tour is perfect for travelers who want a full-day experience that emphasizes swimming, sightseeing, and exploring Milos’s iconic geological features.
You’ll start with a private RIB (rigid inflatable boat), which makes navigating the calm waters of Milos even in windy conditions. The highlight is visiting Kleftiko, a dramatic series of caves and rock formations that look like they belong on a movie set. Many consider Kleftiko to be Greece’s most photographed landscape. The tour also visits remote beaches, an old mine, and stops at Tsigrado Beach, accessible only by boat.
The reviews average 4.3/5, emphasizing the tour’s spectacular scenery and the calmness of Milos’s south coast, even when the wind blows. The price of about $1,654 per group might seem steep, but it covers a full day of exclusive access and personalized sightseeing. The tour is ideal for active travelers, couples, or groups eager to explore hidden beaches and spectacular caves in comfort.
Bottom Line: A great way to see Milos’s most famous sights with plenty of time for swimming and photography, especially suited for those who want an adventurous yet comfortable trip.
3. Sifnos: Explore Polyaigos and Kimolos on a Private Cruise
Rounding out our list is the most comprehensive option: a six-hour private cruise that visits three beautiful Cycladic islands—Polyaigos, Kimolos, and Sifnos itself. This tour is perfect for travelers looking to combine relaxation, exploration, and cultural discovery in one outing.
The trip starts from BLOOMARINE RENT A BOAT AND CRUISES, where your boat departs on a 15-minute cruise to Polyaigos. You’ll have a chance to photo stop and enjoy sightseeing in about 20 minutes before heading to Kalogeri Cove and Prasa Beach for swimming and snorkeling. The itinerary includes a visit to Kimolos, where you can explore the town of Kimolos Chora and visit Panagia Kitriani for a touch of Greek heritage.
The tour features exclusive access to hidden coves and beaches, with plenty of time for swimming, lunch, and shopping in Kimolos. The itinerary’s flexibility means you can tailor the stops to your preferences. The reviews are not yet rated, but the detailed plan promises a full day of natural beauty and cultural sights.
Bottom Line: Ideal for travelers wanting a longer, diverse experience, combining sea, culture, and relaxation across multiple islands in one trip.
How to Choose
When deciding between these tours, think about your budget, time, and interests. If a private experience with a quick escape appeals to you, the Speedboat to Sifnos’s South Coast is perfect. For those who seek the most scenic, immersive boat ride, the Milos Kleftiko cruise offers iconic landscapes with a full-day itinerary. Finally, if exploring multiple islands and enjoying a mix of swimming, sightseeing, and culture sounds best, the Polyaigos and Kimolos cruise provides a comprehensive day at sea.
Booking early is recommended, especially in peak summer months, as private tours fill quickly. Consider your fitness level—these trips involve swimming and some walking, but most are accessible for reasonably active travelers.
Final Thoughts
All three options provide a memorable way to experience the beauty and charm of the Cyclades from the water. For romantic couples or small groups looking for privacy, the speedboat is ideal. Those wanting spectacular scenery and adventure will love the Milos RIB cruise, while culture and multiple island visits make the Polyaigos-Kimolos tour a full-day highlight.
Whichever you choose, these boat experiences will deepen your appreciation for the incredible landscapes and laid-back charm of Sifnos and its nearby islands. Be sure to book early—these tours are popular and fill up fast, especially in high season.