Agios Sostis is a treasure trove for those looking to explore Zakynthos in a way that combines natural beauty with authentic moments. Its coastal location makes it ideal for sea-based tours, whether you’re cruising past the iconic Caretta Caretta turtles or exploring hidden caves and beaches. We particularly love the Laganas Bay Speedboat Tour, which combines speed, scenery, and turtle spotting, making it perfect for thrill-seekers and nature lovers alike. For a more personalized experience, the Turtle Island private boat trip offers exclusivity and a chance to explore at your own pace. If you’re interested in self-driving your adventure, the Private Speedboat Rental allows you to create your own itinerary along the coast, with full safety gear and insurance included.
Agios Sostis is also a fantastic base for land adventures, such as the Mykonos Jeep Tour or the 4WD island excursions from cruise ports. Whatever your style—whether a family-friendly caves and turtle spotting tour or a luxury private boat—you’ll find options tailored to your pace and interests. Now, let’s dive into the details of each of these top tours and help you decide which one suits your trip best.
1. Zakynthos: Laganas Bay, Myzithres & Turtles Speedboat Tour
At number 1 on our list, this speedboat tour offers a lively and engaging way to explore the Zakynthos Marine Park. It’s a 3.5-hour adventure that takes you on the Ionian Sea, with three swimming stops in the most scenic spots. What makes this tour stand out is the combination of speed, small group intimacy, and active exploration, including stops at the famous Mizithres Beach with its unusual rock formations and the Kerri Caves. The highlight, of course, is visiting a turtle breeding ground where you might see the loggerhead sea turtles that Zakynthos is famed for, especially during the season. The tour’s reviews highlight its value for money, with friendly guides and breathtaking views.
Guests rave about the experience, mentioning how Jimmy’s guiding and navigational skills made the trip memorable. The tour includes swim stops and photo opportunities, plus the chance to see the Keri Caves and Marathonisi. Practical tips? Bring water shoes and sun protection, and be prepared for a rocky ride at times. This is best suited for active travelers who want a quick, immersive taste of Zakynthos’ marine beauty.
Bottom Line: An energetic, small-group tour offering excellent value, sea life encounters, and plenty of swimming opportunities.
2. Zakynthos: Turtle Island and Caves Private Boat Trip
Number 2 is a private boat experience designed for those craving exclusivity and flexibility. For around $333 per group, up to 2 people, this 3-hour trip is tailored just for you. It includes spotting the Caretta Caretta turtles in their natural habitat, as well as exploring Mizithres Rocks—those dramatic, turquoise-studded formations. The island shaped like a turtle, Marathonisi, is a highlight, with time to swim, snorkel, and enjoy the scenery away from crowded spots. The private nature of the trip means your guide can customize stops, making it ideal for families, couples, or small groups wanting a more intimate adventure.
Reviews confirm that the guide Angelo makes a difference, with travelers praising his friendly approach and ability to find turtles despite seasonal changes. The experience is especially suited for those wanting a personalized trip with snorkeling and cave visits. The main drawback? It’s more expensive per group, but the peace of mind and customization often justify the price.
Bottom Line: Perfect for small groups or couples looking for a tailored, private experience with plenty of time for swimming and exploring.
3. Agios Sostis: Marathonissi, Keri Caves, and Turtle Spotting
Number 3 on our list offers a cost-effective option at just $28.12 per person for a 3-hour tour. It uses a glass-bottom boat to give you a glimpse of the marine life beneath the waves. The highlights are swimming in the Keri Caves and spotting turtles in their natural environment, although during some seasons, turtle sightings can be hit or miss. The boat ride is perfect for those who want ease and comfort without the commitment of a full-day tour. Travelers love the breathtaking scenery and the fun atmosphere created by the friendly guide.
While the focus is on snorkeling and cave exploration, the short duration makes it a good choice for families or travelers with limited time. Be aware that some reviews mention the turtles may not be visible during certain seasons, so check the timing of your trip. The tour is best suited for those interested in marine scenery and light adventure.
Bottom Line: An affordable, family-friendly option that combines boat rides, snorkeling, and cave visits—turtle sightings are a bonus.
4. Zakynthos: Guided Boat Tour to Turtle Island with Swimming
This 4.9-star-rated tour offers a guided experience to the famous Turtle Island for about $316, with a 3-hour duration. It emphasizes personalized attention, with a local guide leading you to the best spots for spotting turtles and swimming near Keri Caves and the Mizithres Rocks. The small group size means more interaction and tailored stops, making it ideal for travelers who want a more intimate experience. The tour includes photo stops and marine viewing, with many reviews mentioning the guide’s passion and knowledge.
This tour is highly recommended for those seeking a relaxing yet engaging trip that combines marine life watching with scenic cave swimming. The main caveat is the price, but many find the quality and personal touch justify it. Guests especially appreciate the chance to see turtles in the wild and the breathtaking scenery.
Bottom Line: An excellent choice for travelers wanting a guided, small-group adventure with ample opportunity for snorkeling and photos.
5. Zakynthos: Private Speedboat Rental – No Licence required
Number 5 is perfect for independent travelers who want freedom and flexibility. For just $112 per group up to 6, you can rent a full-equipped speedboat with full insurance and no license required. You’ll get a full safety briefing and the chance to explore hidden caves, beaches, and marathonis island at your own pace. The self-drive format means you can create your own adventure—swimming in the crystal waters or taking photos of the Mizithres cliffs—without the constraints of a scheduled tour.
Guests love this option for its value and independence, though it requires some confidence. It’s best suited for adventurous groups or families comfortable with driving or following instructions. Make sure to reserve in advance, especially in peak season, as availability can be limited.
Bottom Line: The best pick for independent explorers wanting total control over their coastal itinerary.
6. Mykonos: Myths, Gods & Ancient Stories Jeep Tour adventure!
This 4-hour Jeep tour is a standout for its blend of history, mythology, and adventure. Though located in Mykonos, it’s worth noting for travelers who appreciate cultural stories combined with scenic drives. The tour hits Armenistis Lighthouse, Ano Mera, and other hidden spots, giving you a rich narrative of Mykonos’ past. The off-road driving adds an exciting element, making it more than just a sightseeing trip.
The guide’s ability to share stories of gods and giants makes it engaging and educational. Travelers say the scenic views and lively stops create a meaningful experience. It’s perfect for history buffs or those wanting a different perspective on the island’s landscape. The main downside? It may not suit travelers looking for a pure beach or sea adventure.
Bottom Line: A cultural and scenic off-road adventure, excellent for guests who enjoy storytelling and exploring beyond beaches.
7. Turtle Cruise from 9 am or 12 noon or 3 pm for 3 hours
Number 7 offers a budget-friendly option for turtle spotting. Starting at $46 per person, this 3-hour cruise departs multiple times daily. It includes stopovers at Turtle Island, Keri Caves, and Oasis Beach, with swimming and snorkeling opportunities. The group size is generally larger, but reviews note that turtle sightings are common during summer.
While some reviews mention late pickups and long waits, the overall consensus is that it’s a reliable, straightforward trip with beautiful scenery and easy access. It’s ideal for travelers who want an affordable, participatory tour that offers plenty of time for swimming and photo moments.
Bottom Line: A solid, budget-friendly option that delivers marine encounters and cave visits without breaking the bank.
$46 per person
8. Agios Sostis harbor: Rent your own boat!
Number 8 gives you the chance to become your own captain. Renting a boat from Agios Sostis harbor costs about $220 for up to 5 people for 3 hours. This DIY, self-guided trip allows you to explore Marathonisi, Keri caves, and beautiful coastlines on your own schedule. The boats come fully insured and equipped, with full safety gear.
Travelers love the freedom to explore hidden beaches and secluded coves without a guide. It’s perfect for adventurous couples, families, or groups wanting complete autonomy. Be aware that you need some confidence in boating or at least a good sense of direction.
Bottom Line: Ideal for self-sufficient explorers eager to chart their own course along Zakynthos’ coast.
$220 per group up to 5
9. Mykonos: Private 4WD Tour with Hotel Pickup
Number 9 offers a luxury, private way to see Mykonos in 4 hours. The customizable itinerary includes visits to hidden beaches like Agios Sostis and Fokos, as well as cultural sites like the Panagia Tourliani Monastery. The 4WD vehicle handles rougher terrain, giving access to off-the-beaten-path locations.
Guests rave about the personalized experience and expert local guides who tailor stops based on your interests. This tour appeals to luxury travelers or families wanting a comfortable, exclusive outing. The main consideration is the higher price point, but many say it’s well worth the personalized attention.
Bottom Line: Perfect for those seeking a bespoke, comfortable tour with flexible stops and local insights.
$402 per group up to 4
10. Mykonos: Private 4×4 Jeep Island Adventure from Cruise Port
This 4-hour private adventure is designed for cruise travelers wanting to maximize limited shore time. It features off-road driving, visits to remote beaches, and local villages like Agios Sostis and Merchia. The air-conditioned 4×4 SUV makes it comfortable, and the local guide shares interesting stories along the way.
Reviews highlight the convenience and flexibility of this shore excursion. It’s suited for cruise passengers looking to escape the crowds and explore authentic parts of Mykonos. The 4-hour itinerary is packed with scenic stops and cultural gems, ensuring you see the best of the island in a short window.
Bottom Line: Excellent for cruise passengers wanting a customizable, stress-free way to see Mykonos’ hidden corners.
11. Zakynthos: Marathonisi Island Taxi Boat Trip by Eurosky
Number 11 is a budget-friendly, small-group option for Marathonisi, the famous Turtle Island. At just around $22.58 per person, it lasts 3 hours and takes you across turquoise waters to explore beaches, snorkel spots, and marine life. The trip includes a stop at Marathonisi for relaxing on the beach or swimming. Many reviews mention beautiful scenery and friendly crew.
This trip is perfect for travelers on a budget who want a short, scenic cruise with a chance to spot turtles and enjoy a quick island visit. It’s less about luxury and more about value and simplicity.
Bottom Line: An affordable, straightforward way to visit Marathonisi with a focus on relaxation and marine scenery.
$22.58 per person
12. Zakynthos: Private Boat Tour with Captain
Our final entry offers a customizable private boat experience lasting up to 5 hours. You get your own local captain to navigate hidden caves, swim spots, and marvel at the Mizithres cliffs. The tour includes visits to Marathonisi, Agalas caves, and other secluded locations.
Reviewers praise the flexibility and personalized itinerary that allow you to see Zakynthos’ most stunning spots without the crowds. It’s an excellent option for families, couples, or anyone wanting a bespoke trip. Since it’s private, you can adjust the stops as you go—perfect for custom interests.
Bottom Line: The ideal luxury, flexible tour for those wanting to craft their own adventure along the coast.
How to Choose the Right Tour in Agios Sostis
When selecting a tour, consider your budget, time constraints, and interests. If you’re after a thrilling speedboat experience, the Laganas Bay Tour may be perfect, especially if you want small group intimacy. For personalized exploration, the Private Boat Trip offers unparalleled flexibility, while the self-drive speedboat is great for those who want autonomy.
If you prefer land-based explorations, the Mykonos Jeep Tour and the shore excursions from cruise ports provide a comfortable way to see remote beaches and cultural sites. Budget travelers might opt for the more affordable turtle boat cruise, while those seeking luxury and customization will find the private boat options best.
Booking early is recommended, especially in peak season, as popular tours tend to fill up quickly. Think about what type of experience (adventure, relaxation, cultural insight) suits your style best, and you’ll find an adventure that makes your trip memorable.
Final Thoughts
Whether you prefer speedy boat rides, private exploration, or off-road adventures, Agios Sostis offers a variety of tours to match your travel style. For active travelers and families, the Laganas Bay Speedboat Tour provides excitement and scenery. Want a more intimate connection with marine life? The private boat trips deliver personalized encounters. Those interested in off-the-beaten-path sights will love the 4WD land excursions, giving a deeper look into Mykonos’ culture and natural beauty.
In all cases, the key is to plan ahead—these tours fill up fast, especially in high season. Pick the experience that best fits your interests, budget, and schedule, and you’ll come away with stories worth sharing for years. Happy sailing, exploring, and discovering the true heart of Agios Sostis and beyond.