Heraklion is a fantastic base for exploring Crete’s underwater world thanks to its proximity to clear, calm waters and unspoiled islands like Dia. Whether you’re a seasoned snorkeler or a first-timer, Heraklion offers a variety of snorkeling adventures that combine scenic sailing with immersive marine experiences. We particularly enjoy tours that include guided snorkeling with professional instructors, like the Heraklion: Boat Safari with guided snorkeling tour, which offers a small-group setup for a personalized touch. It’s perfect for those who want a quick, quality trip without crowds. Plus, the Heraklion: Snorkeling Tour with Sea Scooter stands out for its playful approach, especially if you’re interested in trying a sea scooter while exploring vibrant marine life.
Our list covers a range of snorkeling tours including sailing cruises, private motorboat excursions, sunset sails, and even mermaid-style snorkeling. Each offers a unique way to enjoy the water, whether you’re seeking a relaxed day on a catamaran or an energetic guided tour with equipment included. Below, you’ll find detailed descriptions to help you pick the best experience for your interests and travel style.
1. Heraklion: Dia Island Sailing Cruise with Snorkeling
At number 1, the Heraklion: Dia Island Sailing Cruise with Snorkeling offers a well-rounded day on the water with a mix of sailing, snorkeling, paddleboarding, and dining. This tour is highly rated (4.6/5 from nearly 500 reviews), which speaks to its popularity and consistent quality. The cruise departs from Heraklion and takes you to the completely uninhabited Dia Island, famous for its crystal-clear waters and tranquil beaches.
You’ll enjoy scenic sailing over the Mediterranean with onboard food and drinks, including a traditional Greek meal or appetizers. The highlight for many is the snorkeling gear included, allowing you to explore the underwater world full of fish and ancient pottery fragments. The tour also features paddleboarding in the northern waters, ideal for relaxing or trying your hand at a new water activity. The crew is certified and professional, ensuring safety and entertainment. Reviews rave about the mythical stories shared by the captain and the breathtaking scenery.
Bottom line: This tour is perfect if you want a full-day experience with several water activities, scenic views, and good value. It’s particularly good for families or groups who enjoy a relaxed, all-inclusive day at sea.
2. Heraklion: Dia Catamaran Tour, Lunch, Open Bar & Snorkeling
Number 2 on our list is the Heraklion: Dia Catamaran Tour, Lunch, Open Bar & Snorkeling, which stands out for its luxurious, comfortable sailing experience. This 5-hour cruise takes you aboard a Lagoon 450 catamaran, which offers ample space for lounging, socializing, and snorkeling in the Aegean.
What makes this tour unique is its all-inclusive approach, with a Mediterranean lunch, soft drinks, hot drinks, and even alcoholic beverages included. The crew is praised for being friendly and attentive, with many reviews mentioning how they made the trip enjoyable and fun. The boat’s modern design means you can sunbathe comfortably or relax with onboard Wi-Fi. The trip also features fishing and paddleboarding, giving you options beyond just snorkeling.
Reviewers love the small group size, which fosters a more intimate atmosphere, and mention the delicious food and well-organized crew as highlights. One reviewer said, “Great local food, a fantastic boat, and a very relaxing trip.” This tour suits travelers looking for a more upscale, leisurely day on the water with excellent cuisine and drinks.
Bottom line: For travelers prioritizing comfort, good food, and a premium experience, this cruise offers great value despite its higher price.
3. Heraklion: Sunset Sailing Cruise Dia Island with Snorkeling
Number 3 combines the magic of a sunset with the fun of snorkeling. The Heraklion: Sunset Sailing Cruise Dia Island with Snorkeling offers an enchanting way to end the day with scenic views of the sunset as the sailboat cruises back from Dia.
This 4.5 to 7-hour tour features snorkeling, paddleboarding, and time to relax on Dia’s beaches. You’ll enjoy food and drinks onboard, with the added bonus of witnessing Crete’s crimson sunset over the water. The certified crew ensures a smooth, safe experience while sharing stories and mythology about the island. Reviews highlight the tranquility and beauty of the evening, with many mentioning the relaxing atmosphere and delicious onboard meal.
This tour is ideal if you want to experience Crete’s sea in a more peaceful, romantic setting. The sunset views are a highlight, and the smaller group makes for an intimate experience.
Bottom line: Perfect for couples or anyone wanting a chill, scenic finale to their Heraklion holiday, with the added bonus of snorkeling at sunset.
4. Heraklion: Dia Island Morning Sailing Trip with Snorkeling
Starting your day with the Heraklion: Dia Island Morning Sailing Trip with Snorkeling gives you a peaceful, less crowded experience. This 6-hour morning tour is perfect for those who like to beat the heat and crowds, with a sailing adventure that takes you around Dia’s beautiful coastline.
The tour includes snorkeling and swimming in clear waters, with plenty of time to explore the rocky coves and beaches. The crew is friendly, and the itinerary features a photo stop at Rocca a Mare Fortress — ideal for capturing scenic shots of the coast. Many reviewers mention the crystal-clear waters and the relaxing pace of the trip. “The water was our favorite place to swim in Europe,” one says, emphasizing the quality of the snorkeling. The food and wine onboard add to the experience, making this a fabulous morning escape.
This trip suits travelers who want a more intimate, early-day adventure with the chance to explore creeks and coves before the day gets busier.
Bottom line: Best for early risers who want a peaceful sailing and snorkeling experience and stunning coastal scenery.
5. Lygaria: Private Motorboat Cruise with Snorkeling & Swimming
Number 5 on our list is the Lygaria: Private Motorboat Cruise with Snorkeling & Swimming. This up to 4-person private tour offers a personalized experience exploring the bays of Ligaria and Agia Pelagia. For about $282, the price is per group, making it excellent value for a tailored day on the water.
What stands out is the customizable itinerary, with stops at Agia Pelagia Bay and Ligaria Bay for swimming and snorkeling. The professional crew ensures safety and provides lifejackets, while the ability to fish adds a unique touch. Many reviewers appreciate the friendly guide, who shares stories about local life, and mention the quiet, calm waters perfect for snorkeling. One reviewer noted, “We learned so much about Crete, and Matthaios brought apricots from his tree—such a personal touch.”
This tour is ideal if you want privacy and flexibility with your day, especially if you’re traveling with a small group or family. It’s best suited for those comfortable with swimming and seeking a more exclusive experience.
Bottom line: Perfect for small groups or couples wanting a private, relaxed day at sea with some snorkeling and local insight.
6. Heraklion: Boat Safari with guided snorkeling tour
The Heraklion: Boat Safari with guided snorkeling tour ranks highly with a 4.7/5 rating from only nine reviews but offers a charming, intimate experience. This small-group tour lasts about 2.5 to 3 hours, exploring coastal spots around Heraklion with guided snorkeling in the first stop.
This tour is especially good if you want a shorter, personalized trip that still delivers quality snorkeling. The itinerary includes a safety briefing, a photo stop at Pantanassa, and swimming at Agia Pelagia. The snack and water on board help keep you refreshed, and the personalized service makes for a relaxed atmosphere. Reviewers appreciate the professional crew, with one mentioning how they even let a passenger steer the yacht when seasick.
It’s best suited for those short on time but still eager to explore creeks and snorkel in quieter spots. Its small group size ensures a more tailored experience.
Bottom line: Great for those seeking a quick, intimate snorkeling trip with a focus on personal service.
7. Snorkeling Tour with Sea Scooter in Heraklion
For a fun and playful approach, the Snorkeling Tour with Sea Scooter ranks a perfect 5/5 based on just three reviews. This 3-hour tour allows you to explore the waters of Mononaftis without needing advanced swimming skills—since the sea scooter does the work for you.
Led by an instructor, you’ll learn how to use the scooter before heading out to find marine life, making this ideal for first-time snorkelers or adventure seekers. The small group size and professional instruction ensure safety and fun. Reviewers rave about how easy and enjoyable it is, with one saying, “I didn’t need to swim much, and the underwater scenery was fantastic.”
This tour is perfect if you want a lighthearted, interactive experience that combines technology and marine exploration. It’s also suitable for people who enjoy water sports but may be hesitant about traditional snorkeling.
Bottom line: Excellent for families or individuals who want to try snorkeling with minimal effort and a lot of laughs.
8. Heraklion: Diving, Swimming, and Snorkeling like a Mermaid
Our final standout, Diving, Swimming, and Snorkeling like a Mermaid, is designed for those wanting to indulge their fantasy of being a mermaid. This 3-hour experience involves learning to swim like a mermaid with professional instruction, donning a costume tail with an embedded monofin, and exploring the sea.
This tour is best suited for confident swimmers who want a unique photo opportunity and a fun, themed adventure. Reviewers mention the friendly instructors and the crystal-clear waters at Agia Pelagia Bay, perfect for mermaid-style exploration. One reviewer called it an “unreal experience,” emphasizing how it fulfills childhood dreams. It includes recognition cards for completing the activity, adding a souvenir to your underwater memories.
The tour is a bit more niche but provides highly memorable moments for those interested in fantasy, photography, or water play. It’s a great pick for families or couples seeking something a little different.
Bottom line: Ideal if you’re comfortable swimming and want a themed, playful adventure with the chance to look and feel like a mermaid.
How to Choose Your Best Snorkeling Experience in Heraklion
Picking the right tour depends on your budget, available time, and interests. For an all-day adventure with scenic sailing and multiple water activities, the Dia Island Sailing Cruise delivers a balanced experience. If you prefer luxury and gourmet food, the Dia Catamaran Tour is perfect.
For travelers craving a romantic sunset, the Sunset Sailing Cruise offers stunning views and gentle activities. Those on a tight schedule should consider the shorter Boat Safari with guided snorkeling for a quick yet satisfying outing.
If you are traveling with kids or want a fun, interactive experience, the Sea Scooter snorkeling tour provides a playful spin on traditional snorkeling. And for something truly memorable, the mermaid experience will give you a fantasy-filled day in the water.
Remember to consider seasonal weather, especially for sunset and early-morning trips, and book early during peak months. Whichever you choose, Heraklion’s marine activities promise a rewarding, refreshing adventure.
Final Thoughts
Heraklion offers a wide range of snorkeling experiences—from relaxing sailing cruises to private boat adventures and themed underwater escapades. For travelers seeking comfort and gourmet dining, the Dia Catamaran Tour is a standout. If you want a more intimate, guided snorkeling outing, the Boat Safari fits the bill. For families or playful spirits, the Sea Scooter Tour and mermaid experience offer fun, unique twists.
Be sure to book early, especially during peak seasons, and pick a tour that matches your fitness level, interests, and schedule. Whatever your choice, Heraklion’s waters are waiting with clear, inviting sights that promise a memorable underwater adventure.
