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Discover the beauty of Greece’s lesser-known islands with this full-day Kalamos & Kastos tour, featuring caves, beaches, and charming villages for a memorable experience.
Exploring Greece’s Hidden Gems: The Forgotten Islands of Kalamos & Kastos
This tour offers a fascinating glimpse into some of Greece’s quieter, less traveled islands—Kalamos and Kastos—combined with a visit to the intriguing Papanikolis Cave on Meganisi. Running for about 8 hours, it’s designed for travelers who want to escape the crowds and enjoy a relaxed day filled with swimming, exploring charming villages, and soaking up stunning scenery.
One aspect that stands out for many is the opportunity to visit unspoiled beaches and quaint villages that aren’t usually on the typical tourist radar. It’s a chance to experience authentic local life, especially on Kastos, a tiny island with only around 50 residents.
However, some reviews suggest that the experience might be less suited for those expecting a luxurious or highly curated trip. For instance, the boat can get crowded during peak season, and the comfort level inside the vessel may vary depending on the day. This tour is best suited for travelers who don’t mind a bit of hustle, enjoy authentic local charm, and are curious about the lesser-known corners of the Ionian Sea.
Key Points
– Unique Stops: Visit the Papanikolis Cave, Kastos, and Kalamos for a blend of natural beauty and local culture.
– Swim & Snorkel: Refreshing spots like Formekula Beach make for perfect swimming opportunities.
– Authentic Villages: Explore Kastos and Kalamos, where slow-paced life and unspoiled scenery await.
– Cost & Value: At just over $50, the tour offers a full day of sights, swimming, and culture—excellent value for money.
– Timing & Access: Starts at 9:30 am from Nidri Port, with a convenient meeting point near public transport.
– Group Size & Flexibility: The tour can accommodate up to 150 travelers, so expect a lively group but still manageable.
– Weather & Flexibility: Cancellations are possible if weather turns bad, ensuring safety.
– Reviews & Realities: Mixed reviews highlight crowded boats and variable crew care, but many still find the experience worthwhile.

The tour kicks off bright and early at Nidri Port in Lefkada, a central and accessible location for most travelers. The meeting point is close to public transportation, making for an easy start. You’ll check in around 9:30 am, with the trip lasting roughly 8 hours. Remember, drinks and food are not included, so packing some snacks and water is wise, especially if you want to stay refreshed during the day.
While the tour covers a lot of ground, keep in mind that transportation from your hotel to the port isn’t included, so plan accordingly. The actual boat trip is shared with other travelers, with a maximum capacity of 150, which means some might find it a bit crowded, especially during the busy season. One review mentioned feeling “overcrowded” with very little room to move—so if you’re sensitive to tight spaces or congestion, this could be a consideration.
Looking for more options in Lefkada? Here are some other experiences worth considering.
The first stop on the journey is the Papanikolis Cave on Meganisi, a site with a storied past. Historically, it served as a hideout for the submarine Papanikolis during World War II. The cave’s vast interior is impressive, and the experience of floating near such a significant historical site adds a layer of curiosity.
The boat cruise to Meganisi takes about 45 minutes, giving plenty of time to enjoy the views of the Ionian Sea. Many travelers comment on the sheer size of the cave—it’s “astounding,” according to some—and appreciate the chance to peer into a natural formation steeped in history. It’s a great photo opportunity, and even those not history buffs tend to enjoy the scenic boat ride and the chance to get close to such a natural marvel.
Pro Tip: If you’re prone to seasickness, the open-air boat offers good ventilation, but be prepared for the possibility of getting a little sun. Also, those who want to avoid the crowds may find the busy boat scene a bit less intimate, but it’s a lively way to start the day.
The second major stop is Kastos, a tiny island about 8 km long and less than 1 km wide. With only around 50 permanent residents, Kastos is a perfect escape from the hustle and bustle of more popular Greek islands. Here, you can wander through narrow streets, shop for local souvenirs, or simply sit back and enjoy the tranquility.
Many visitors are drawn to Kastos for its unspoiled beaches and laid-back atmosphere. The two-hour visit allows time for a relaxing walk, some casual shopping, or a quick swim. The island’s simple, authentic way of life shines through—think small tavernas, friendly locals, and no crowded resorts.
The third stop is the island of Kalamos, which offers a striking contrast to the other stops. This isn’t a traditional island but a floating mountain range with tall pine trees climbing from the rocks right to the water’s edge. The pines, of a distinctive species, give the landscape a wild, rugged feel that many travelers find captivating.
The two-hour visit is enough to walk around and appreciate this natural wonder, with some reviewers noting that the pine trees seem to “insist on demonstrating their superiority” over the rocky terrain. It’s a quieter, more contemplative stop, perfect for nature lovers who want to soak in the scenery without the distraction of crowds.
One of the most appreciated elements of the tour is the morning swim at Formekula Beach. The clear waters and peaceful surroundings make for a refreshing break, a chance to cool off and enjoy some snorkelling or just lounging on the sand. Many reviews praise the swim as “refreshing,” with waves gentle enough for relaxed floating and exploring underwater life.
While some reviews mention the boat’s capacity and the tight spaces inside, most agree that the tour offers a genuine experience of Greece’s lesser-known islands. It’s not a luxury cruise, but rather an authentic day out on the water, with plenty of opportunities to relax and explore.
The crew’s attentiveness varies, with some guests noting they didn’t get overly detailed care, but many appreciate the straightforward, no-frills approach. It’s clear that this trip prioritizes natural beauty and the local vibe over luxury amenities.
At $52.14 per person, this tour delivers excellent value. For a full-day experience—including visits to historic caves, charming villages, and beautiful beaches—it’s fairly priced. Considering the cost of organized excursions elsewhere, especially with included transportation and guides, this is a budget-friendly option for travelers seeking a blend of adventure and relaxation.
This experience is perfect for those who want a more authentic, off-the-beaten-path journey. Nature lovers, history buffs, and anyone craving a peaceful break from tourist hotspots will find these islands fascinating. However, if comfort and space inside the boat are top priorities, or if you’re sensitive to crowds, it might be worth considering other options or preparing for a lively, bustling atmosphere.

This tour provides a well-rounded taste of Greece’s lesser-known islands, with plenty of opportunities to swim, explore, and learn about local history. The stops at Kalamos and Kastos are simply unforgettable for their untouched charm and natural beauty. It’s an ideal choice for travelers who want to experience authentic island life, enjoy scenic boat rides, and spend the day in peaceful surroundings.
The value for money is solid, especially given the full-day itinerary and variety of sights. Keep in mind the mixed reviews about crowding and crew attentiveness, but for many, the experience still hits the right notes—especially if you’re eager to see the real Greece away from the tourist crowds.
If you’re looking for a relaxed, authentic day on the water with unique stops and a touch of history, this trip will likely suit you perfectly. Just remember to bring sun protection, some snacks, and an open mind for a lively, adventure-filled day.
What time does the tour start?
The tour begins at 9:30 am from Nidri Port, so plan to arrive a little earlier to check in comfortably.
Is transportation from my hotel to Nidri Port included?
No, the transfer from your hotel to Nidri Port and back is not included, so you’ll need to arrange that separately.
What should I bring with me?
Bring snacks, water, sun protection (hat, sunscreen), and swimwear for the swimming stops. No food or drinks are included.
How long is the boat ride to Papanikolis Cave?
It takes approximately 45 minutes by boat from Nidri to Meganisi to reach the cave.
How much time do I get on each island or stop?
You’ll have about 2 hours to explore Kastos, 2 hours at Kalamos, and a shorter swim break in the morning at Formekula Beach. The cave visit is about an hour.
Is the boat crowded?
During peak season, some guests found the boat crowded, with limited room to move inside. The maximum capacity is 150 travelers, so expect a lively group.
Are there any hidden costs?
All fees and taxes are included. Food, drinks, and tips are not included, so budget accordingly.
Can families participate?
Most travelers can participate, but consider the boat capacity and comfort if traveling with young children or elderly guests.
What happens if the weather is bad?
The tour is weather-dependent. If canceled due to poor conditions, you’ll be offered a different date or a full refund.
In essence, the Forgotten Islands tour offers a lively, authentic slice of Greece’s Ionian Sea, perfect for those seeking a mix of history, nature, and local charm. It’s a day packed with scenic views, relaxing swims, and charming villages—well worth considering for your Greek adventure.