3h Snorkeling tour: Marianna shipwreck- Parthena- Kastraki

Imagine gliding through crystal-clear waters, discovering an abandoned ship turned vibrant coral reef, exploring tiny islands with secret spots only accessible by boat, and jumping off rocky outcrops into the Aegean’s inviting waves. That’s roughly what this 3-hour snorkeling trip from Flisvos Dive Center promises — a short but richly rewarding adventure along Greece’s stunning South Aegean coastline.

What makes this experience stand out? First, it’s the intimacy of small-group excursions with a maximum of 4 people (up to 9 on the boat), led by a friendly, knowledgeable crew. Second, the variety packed into just three hours means you get three distinct locations — from the famed Marianna shipwreck to the untouched beauty of Parthena island and the rugged, scenic Kastraki rocks. Third, the focus on authentic, boat-access-only spots ensures you’ll see parts of the coastline most visitors miss.

The only potential consideration? The tour’s short duration makes it ideal for those with limited time but might leave avid snorkelers craving more time at each site. This experience is best suited for travelers seeking a quick, captivating taste of Greece’s underwater and coastal scenery without the hassle of full-day commitments. It’s perfect for couples, small groups, or anyone who loves exploring unique spots with expert guidance.

Key Points

• Small group size enhances personalized attention and comfort.
• Three distinct stops offer varied scenery and underwater life.
• Boat access opens up exclusive snorkeling spots and secluded beaches.
• Short duration suits those on tight schedules or first-timers.
• All snorkeling equipment and soft drinks are included, simplifying planning.
• Ideal for travelers who appreciate authentic experiences, but not suitable for young children, pregnant women, or those requiring transfers.

You can check availability for your dates here:

Discovering the Highlights of the 3-hour Snorkeling Tour

This trip from Flisvos Dive Center is designed to deliver a compact but memorable slice of Greece’s marine and coastal allure. You’ll start at the Marianna shipwreck, then cruise to Parthena island, and finally make a splash at Kastraki rocks. Each stop offers distinct sights and experiences, making the most of limited time.

Marianna Shipwreck: A Fascinating Underwater Habitat

Located between Naxos and Paros, the Marianna shipwreck is the star of this trip. Once a vessel ferrying goods, it now functions as an unmissable artificial reef. Several reviews highlight how the wreck has become a lively hub for marine life, transforming from a sunken relic into a vibrant underwater habitat. One guest noted, “The shipwreck was fascinating to see, and I loved how colorful the fish and corals had become around it.”

Snorkelers can expect to see a variety of marine creatures, including octopuses and turtles, with the wreck providing a perfect backdrop for photos and underwater exploration. The calm, clear waters make it accessible for all levels, and the short boat ride to this spot means you’ll spend plenty of time enjoying the scenery rather than sitting in transit.

Parthena Island: A Hidden Gem Accessible Only by Boat

Next stop is the tiny island of Parthena, crowned by a charming chapel. This secluded spot offers a unique mix of scenic views and opportunities to snorkel close to the shoreline. The island is a favorite for those looking to experience Greece’s untouched coastal beauty. Reviewers mention how peaceful and unspoiled the island feels — “It was wonderful to snorkel near the rocks, watching octopuses dart across the sea floor and seeing turtles surface nearby.”

You’ll enjoy exploring the calm waters, with the added bonus of spotting diverse marine life close to the island’s rocky edges. The limited access to this island means fewer travelers and an authentic Greek island vibe, perfect for swimming, relaxing, and soaking in the scenery.

Kastraki Rocks: Rugged Beauty and a Thrilling Jump Spot

The final stop is at Kastraki, where the rocky formations invite adventurous souls to dive off the cliffs into the water below. The terrain here is dramatic, with towering rocks offering stunning vistas of the Aegean. From reviews, it’s clear that the scenic views alone make this a worthwhile part of the trip — “The cliffs are breathtaking, and jumping off into the blue was a real adrenaline rush.”

While not a full-fledged dive experience, jumping from the rocks provides a fun, lighthearted end to the tour. Many guests appreciate how this spot combines natural beauty with a touch of thrill, making it a memorable finale.

More Great Tours Nearby

Practical Details & What to Expect

The tour runs from Flisvos Dive Center, located at Saint George Beach, a convenient starting point. The boat used is a brand-new RIB (rigid inflatable boat), which is fast, stable, and comfortable. The maximum passenger capacity is 9, ensuring plenty of space and personalized attention.

The tour lasts about 3 hours, with flexible start times depending on availability — check ahead for the most suitable slot. The price at $508 per group up to four people offers good value considering the private or semi-private nature of the trip and all included gear and soft drinks. Keep in mind that transfers from your hotel, towels, and swimsuits are not included, so plan accordingly.

What to Bring & Considerations

For your comfort and safety, you should bring a passport or ID, swimwear, and a towel. The tour is not suitable for children under 2 or for pregnant women, given the physical nature of some stops and boat activity. While the snorkeling equipment is provided, bringing your own mask or fins (if you prefer) is optional.

The Experience You’ll Have

Expect a professional yet relaxed atmosphere with Greek and English-speaking guides who know the waters intimately. Guests often comment on how attentive and friendly the crew is, making transitions smooth and enjoyable. The small group size means you can ask plenty of questions and get customized attention.

Final Thoughts

This 3-hour snorkeling tour offers a compact adventure that highlights Greece’s enchanting coastline and underwater treasures. It’s perfect for travelers seeking an authentic, intimate experience without committing to a full day. You’ll love the variety of stops — from the historic Marianna shipwreck to the tranquil Parthena island and the rocky thrill at Kastraki — all crafted to maximize your time on the water.

The inclusion of snorkeling gear, soft drinks, and the small-group setting makes it a hassle-free option that emphasizes comfort and personalized experience. While it may not suit travelers looking for a full-day or diving-focused trip, it excels as a quick, scenic, and engaging taste of Greece’s maritime beauty.

If you’re a first-time snorkeler or short on time but eager to explore Greece’s coast, this tour offers excellent value. It’s also a fantastic choice for couples or small groups wanting a private experience with memorable vistas and underwater encounters.

Frequently Asked Questions

How long is the tour?
The tour lasts approximately 3 hours, with flexibility on start times depending on availability.

What locations does the tour visit?
It visits three main spots: the Marianna shipwreck, Parthena island, and Kastraki rocks.

Is the tour suitable for children?
It’s not suitable for children under 2 years or pregnant women due to the physical nature of some stops and boat activity.

What is included in the price?
Snorkeling equipment, soft drinks, a captain, and fuel are included. Transfers, towels, and swimsuits are not.

How many people are on the boat?
The boat’s maximum capacity is 9 people, but the tour generally operates as a semi-private or private experience for up to 4 guests.

Do I need to bring my own gear?
Snorkeling gear is provided, but you’re welcome to bring your own mask or fins if preferred.

Where does the tour start?
It departs from Flisvos Dive Center at Saint George beach.

Is the tour weather-dependent?
Yes, it’s best to check the weather forecast; tours can be canceled or postponed in rough conditions.

Can I cancel the tour?
Yes, you can cancel up to 24 hours in advance for a full refund.

This snorkeling trip offers a memorable slice of Greece’s coastal charm, combining history, wildlife, and stunning scenery into a manageable window of adventure. Whether you’re in the mood for a relaxed swim or a bit of adrenaline jumping off rocks, it’s an activity that leaves you with plenty of stories and beautiful photos to take home.

You can check availability for your dates here: