Keri is a standout spot on Zakynthos for anyone eager to explore the sea’s wonders and the island’s rugged coastline. What makes Keri particularly appealing for tours is its combination of dramatic caves, crystal-clear waters, and opportunities for close encounters with sea turtles — especially with the Caretta Caretta species. Whether you’re after a quick half-day adventure or a full-day voyage, Keri offers options that suit many interests. Our favorite? The Half-Day Tour to Turtle Island combines scenic viewpoints, a visit to an olive oil press, and a boat cruise into the famous Keri Caves — a well-rounded taste of what this coast has to offer. If a private experience is more your style, the Zakynthos: Private Speedboat Tour to the Shipwreck and swim offers an intimate, thrill-packed exploration with personalized touches.
If you prefer a more relaxed, romantic vibe, the Zakynthos: Romantic Sunset Tour & the Legend of the Dragon wraps spectacular scenery with storytelling and a breathtaking sunset. For those who love swimming and exploring at their own pace, the Zakynthos: Turtle Island, Keri Caves, & Sunset Boat Tour is an excellent choice for a longer, scenic trip with wine and stunning views. And for a quick, turtle-spotting adventure, the Zakynthos: Turtle Spotting and Keri Caves Boat Tour delivers a focused experience perfect for a half-day outing.
Quick Overview of the Best Tours in Keri
This list covers a range of experiences from half-day boat trips to luxury private tours. For a family-friendly, all-in-one experience, the Half-Day Tour to Turtle Island offers a balanced mix of viewpoints, local products, and boat rides. For travelers seeking exclusivity and adventure, the Zakynthos Private Speedboat Tour stands out with its personalized itinerary. Those who want to combine history, myth, and stunning scenery will enjoy the Sunset & Dragon Legend Tour. For full-day sea exploration, the Turtle Island & Keri Caves Sunset Cruise offers a comprehensive experience, while the Turtle Spotting & Keri Caves Boat Tour is perfect for a quick, focused adventure.
1. Half-Day Tour to Turtle Island – Keri Caves
This 6-hour tour is an excellent introduction to the southern part of Zakynthos. It starts with a pick-up from your hotel in Planos, followed by a scenic stop at Mizithres View Point for breathtaking photos. One of the trip’s highlights is a visit to the Aristeon Olive Oil Press, where you can taste authentic extra virgin olive oils that are a staple in Greek cuisine. Afterward, the boat cruise takes you into the famous Keri Caves, where you can see the Caretta Caretta turtles through a glass-bottom boat — a true highlight for nature lovers. The boat then sails into the Blue Caves, where the striking blue waters create an unforgettable backdrop.
The tour’s flexible itinerary allows plenty of swimming time in the clear Ionian Sea and a chance to relax on the boat. Reviewers note the friendliness of the driver and the well-organized schedule, with one saying, “We were picked up on time, and the boat trip was very enjoyable.” It’s a fantastic choice for travelers who want a balance of sightseeing, local culture, and sea adventures.
Bottom line: Perfect for those short on time but eager to see the best of Keri’s coast, especially if you enjoy a mix of land and sea.
2. Zakynthos: Private Speedboat Tour to the Shipwreck and swim
At number two, this private speedboat tour offers a personalized adventure around Zakynthos, focusing on iconic sights like Shipwreck Beach and the Blue Caves. For around $425 per group (up to four people), you get a 4.5-hour journey with the flexibility to customize your stops. The tour explores Shipwreck Beach, one of the island’s most famous landmarks, with stories about its history and why it’s a must-see. You’ll cruise through the Blue Caves, swimming in their shimmering waters, then visit lesser-known spots like Porto Stenitis and Porto Limionas — perfect for those who want to avoid crowded tourist spots.
The beauty of this tour is its exclusivity, led by a knowledgeable skipper who shares insider tips and secret swim spots. It’s ideal for couples or small groups looking for intimacy and a tailored experience. Given the high praise — “Feel the thrill of a private speedboat around Zakynthos” — it’s clear that this tour delivers a memorable, adrenaline-filled day on the water.
Bottom line: Best suited for those who value privacy, flexibility, and the chance to explore Zakynthos’ most famous sights up close.
3. Zakynthos: Private Boat Tour – South Coast & Swim Stops
This 3-hour private boat tour offers a customizable experience along Zakynthos’ south coast. Starting at Porto Koukla Cruises, your skipper takes you to the Keri Caves, where you can swim and snorkel in the clear waters — a full hour dedicated to exploring these caves’ fascinating formations. The trip continues to Myzithres, another scenic spot perfect for swimming and photos, and then to Marathonisi Beach, where you can enjoy a quick stop for relaxation.
You can choose between two boats — a sleek 7-meter or a cozy 5.6-meter speedboat — depending on your group size and comfort preferences. Reviewers appreciate the personalized approach and “secret swim spots,” making this trip ideal for adventurers who want control over their itinerary. The fuel is included, adding to the overall value.
Bottom line: A flexible, intimate experience ideal for small groups who want to see multiple highlights at their own pace.
4. Zakynthos: Romantic Sunset Tour & the Legend of the Dragon
This full-day tour combines natural beauty, myth, and a stunning sunset. Starting with a visit to the Mizithres rocks, the tour then explores Damianos Cave, where you’ll hear the legend of King Damianos and the mythic dragons associated with the area. The highlight is watching the spectacular sunset, painted in shades of pink and gold, perfect for romantic moments or memorable photos.
The tour includes scenic van rides and stops at viewpoints, with plenty of time for storytelling and taking in the views. The sunset experience is often praised for its tranquility and breathtaking colors. One reviewer notes, “The sunset was truly unforgettable, and learning about the legend added a layer of magic.”
Bottom line: Best for romantics and history lovers who want a leisurely, story-rich experience with a spectacular end to the day.
5. Zakynthos: Turtle Island, Keri Caves, & Sunset Boat Tour
This five-hour boat tour is a well-rounded trip that hits many of Keri’s highlights. It starts with a pickup from multiple locations, then heads out to Turtle Island for turtle spotting and beach relaxation. The boat then moves on to the Keri Caves and Mizithres, where you can swim and take photos in some of the most scenic spots. The tour concludes with a sunset over the Ionian Sea, complemented by a glass of wine — a perfect way to end a day.
The flexibility of pickup points and the inclusion of multiple stops make it popular. Reviewers mention the beautiful scenery and the relaxing atmosphere, ideal for travelers who want a comprehensive, scenic cruise. It’s a good choice for those who want a mix of wildlife viewing, cave exploration, and sunset magic all in one trip.
Bottom line: Great for travelers wanting a full, scenic experience with a relaxed, social vibe.
6. Zakynthos: Turtle Spotting and Keri Caves Boat Tour
This 3-hour tour provides a quick but rewarding look at Keri’s most famous spots. It starts at Cameo Island, then moves to Marathonisi, where you can swim and look for turtles in their natural habitat. The tour also visits Keri Caves, with options for swimming and snorkeling in the crystal-clear waters. A highlight is the National Marine Park of Zakynthos, where marine life viewing is part of the guided experience.
Reviewers appreciate the focused nature of this trip — perfect if you’re short on time but still want to see turtles and caves. It’s ideal for families or anyone interested in marine wildlife without committing to a full-day tour.
Bottom line: Best for travelers who want a quick, wildlife-focused trip that hits the main highlights.
How to Choose the Best Tour in Keri
When selecting a tour, consider your time availability, budget, and specific interests. For a short but comprehensive introduction, the Half-Day Tour to Turtle Island offers a great balance. If privacy and flexibility matter most, the Private Speedboat Tour is unbeatable for personalized exploration. For romantic sunsets and myth storytelling, the Sunset & Dragon Legend Tour is ideal, especially for couples.
Budget-conscious travelers or those seeking wildlife encounters should consider the Turtle Spotting & Keri Caves Tour, while those wanting a full day can opt for the Turtle Island & Sunset Cruise. Remember to book early, especially in peak season, to secure your preferred date and time.
Final Thoughts
Keri offers a diverse array of tours that suit different interests and schedules. If you want a quick overview of the highlights, the Half-Day Turtle Island Tour provides a well-rounded experience. For those craving an exclusive, personalized adventure, the Private Speedboat Tour is hard to beat. Romantic travelers will appreciate the Sunset & Legend Tour for its magical atmosphere, while wildlife lovers should not miss the Turtle Spotting & Keri Caves trip.
No matter your choice, these tours unlock the best of what Keri’s stunning coastline has to offer. Be sure to reserve in advance to make the most of your time on this beautiful part of Greece.