Santorini Tour of Caldera with Glass bottom Boat - Relaxing at the Volcanic Hot Springs

Santorini Tour of Caldera with Glass bottom Boat

Discover Santorini's caldera on a glass-bottom boat tour for $44.30, featuring volcano visits, hot springs, and free time on Thirassia island in 5.5 hours.

Explore the Santorini Caldera by Glass Bottom Boat for $44.30

Santorini Tour of Caldera with Glass bottom Boat - Explore the Santorini Caldera by Glass Bottom Boat for $44.30

This Santorini tour of the Caldera offers a comprehensive experience for those eager to see the island’s volcanic landscape and secluded spots. Priced at $44.30 per person, it lasts approximately 5 hours 30 minutes and departs from the Fira Old Port, making it a convenient choice for cruise travelers. The tour covers all major highlights of the caldera, including the active volcano, volcanic hot springs, and the charming island of Thirassia.

What makes this tour particularly appealing is its family-friendly feature: the glass-bottom boat lets kids get a clear view of the underwater scenery without getting wet. The combination of scenic views, volcanic activity, and free time on Thirassia makes it a well-rounded option for visitors seeking a mix of adventure and relaxation. However, there is a small entrance fee of €5.00 to visit the volcano, which travelers should budget for separately.

The Tour Begins at Santorini’s Old Port

Santorini Tour of Caldera with Glass bottom Boat - The Tour Begins at Santorini’s Old Port

The meeting point for this tour is Santorini Excursions – Dakoutros Bros at the Old Port in Fira. The tour kicks off promptly at 10:45 am, giving ample time to explore before the afternoon. The air-conditioned vehicle ensures comfort during the transfer, and the group size is capped at 70 travelers, helping to keep the experience manageable and enjoyable.

Once aboard, the boat takes you directly into the heart of the caldera, where spectacular views of the islands and volcanic landscape unfold from the upper deck. Reviewers highlight how the friendly and helpful staff clearly explain each stop, making navigation easy and the experience smooth from start to finish.

Climbing the Active Volcano: Youngest Island of Santorini

The first stop is the Nea Kameni volcano, the most recent volcanic formation in the area. Guided by the crew, travelers hike approximately 20 minutes to the crater rims, encountering 4 to 6 craters along the way. This visit offers a chance to see geothermal activity firsthand and appreciate the island’s volcanic youthfulness.

Since the admission fee to enter the volcano is not included in the tour price, visitors should prepare for an additional €5.00 per person. The climb is accessible for most, but those with mobility issues should plan accordingly, as it involves some uphill walking. The views from the top are well worth the effort, presenting a rugged landscape shaped by volcanic forces.

Relaxing at the Volcanic Hot Springs

Santorini Tour of Caldera with Glass bottom Boat - Relaxing at the Volcanic Hot Springs

Next, the boat anchors a few meters outside Palaia Kameni, where the volcanic hot springs are located. This 30-minute stop involves lowering a ladder into a small bay near Agios Nikolaos, allowing guests to swim in the naturally heated waters. The hot springs provide a unique bathing experience with mineral-rich waters, and the free entry makes this a popular highlight.

Since swimming is optional, those who prefer to stay on the boat can relax and enjoy the scenic views. The hot springs are known for their therapeutic qualities, and the ease of access makes this a comfortable activity for most.

Free Time on Thirassia Island

Santorini Tour of Caldera with Glass bottom Boat - Free Time on Thirassia Island

The next part of the tour takes place on Thirassia, a quieter, less developed island that offers a glimpse of Santorini as it was 30 years ago. The boat anchors in Korfos, where travelers have 2 hours of free time to explore. Visitors can swim in the crystal-clear waters or lunch at traditional taverns serving local dishes.

Thirassia’s charm lies in its authentic atmosphere and relaxed pace, making it a favorite for those looking to escape the busier parts of Santorini. There are options for swimming in the calm waters and enjoying local cuisine, adding variety to the tour.

Viewing the Steep Caldera Reefs from Above Water

Santorini Tour of Caldera with Glass bottom Boat - Viewing the Steep Caldera Reefs from Above Water

After free time on Thirassia, the boat passes over a remarkable reef, revealing the steep and deep waters of the caldera. This passage allows travelers to capture photos of the seabed without diving, showcasing the dramatic underwater landscape.

This feature offers an aerial perspective of Santorini’s underwater topography, emphasizing the island’s volcanic origins. It’s a visual highlight that complements the land-based visits and enriches the overall experience.

The Glass Bottom Boat: Perfect for Families

Santorini Tour of Caldera with Glass bottom Boat - The Glass Bottom Boat: Perfect for Families

A standout aspect of this tour is the glass-bottom deck, which provides a transparent view of the seabed. This feature is especially popular among families with children, who go crazy with excitement seeing the underwater scenery without getting wet.

The glass-bottom design makes it easy to observe marine life and the volcanic rocks below, adding an educational element for those interested in the underwater environment. The boat also offers swimming noodles and restroom facilities on board for comfort and convenience.

Practical Details and Additional Inclusions

Santorini Tour of Caldera with Glass bottom Boat - Practical Details and Additional Inclusions

Included in the tour are an air-conditioned vehicle for transfers, restroom facilities on the boat, swimming noodles for water activities, and a local guide who describes each stop in detail. These amenities help keep the experience comfortable and informative.

While lunch and snacks are not included, travelers can purchase food during the free time on Thirassia or bring their own. The tour does not include transfer services outside the meeting point, which travelers should consider in their planning.

Valuable Insights from the Staff and Review Highlights

Santorini Tour of Caldera with Glass bottom Boat - Valuable Insights from the Staff and Review Highlights

According to reviews, the staff is praised for their friendliness and clarity in explaining points of interest. The views from the upper deck are described as magnificent, with plenty of opportunities to capture scenic photos of islands, boats, and volcanic landscapes.

Plus, the hot springs offer a swimming experience directly from the boat, making it an easy and enjoyable activity. The timing and pacing are generally well-received, though some note that the small entrance fee for the volcano should be budgeted in advance.

Flexibility and Cancellation Policy

The tour comes with a free cancellation policy, allowing travelers to cancel up to 24 hours in advance for a full refund. Changes less than 24 hours before the start are not accepted, so it’s best to plan accordingly.

This flexibility makes it a risk-free option for those uncertain about their schedule or weather conditions, and the confirmation of booking is provided immediately upon reservation.

Who Will Enjoy This Tour Most?

This Santorini Caldera boat tour is ideal for cruise travelers and families looking for a comprehensive yet affordable way to experience the island’s volcanic features and scenic waters. Its family-friendly features, like the glass-bottom boat, make it particularly appealing for visitors with children.

However, those seeking a more in-depth volcano experience should be prepared for the additional €5.00 admission fee. The balanced itinerary and informative guides make it a practical choice for travelers wanting a well-rounded caldera adventure.

Santorini Caldera Boat Tour: Final Thoughts

This 5.5-hour tour offers a value-packed exploration of Santorini’s volcanic and marine landscape. The scenic views, hot springs, and free time on Thirassia make it a versatile option for varied interests. Its glass-bottom deck adds a fun and educational element, especially for families with kids.

While the admission fee for the volcano is not included, the overall cost remains competitive, and the friendly staff and comfortable amenities enhance the experience. Suitable for most travelers, it delivers a memorable glimpse of Santorini’s natural wonders.

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Santorini Tour of Caldera with Glass bottom Boat



3.5

“Very nice boat tourthe staff is very friendly and helpful, describing the various points very nicely, and very clear about meeting points and times…”

— Nicholas K, Jun 2025

Frequently Asked Questions

How long is the tour?
The tour lasts approximately 5 hours 30 minutes from start to finish.

What is the price per person?
The cost is $44.30 per person, not including the €5.00 volcano entrance fee.

Where does the tour start?
It begins at Santorini Excursions – Dakoutros Bros in Fira Old Port.

Is the tour suitable for families?
Yes, the glass-bottom boat is especially popular with children, and the overall pace is family-friendly.

What is included in the tour?
Includes air-conditioned transfers, restroom, swimming noodles, and a local guide.

Are meals included?
No, lunch and snacks are not included, but there are options available during the free time.

Can I cancel the tour?
Yes, free cancellation is available if canceled 24 hours in advance.

What should I bring?
Bring money for the volcano entrance fee, swimwear if you wish to swim in the hot springs, and sun protection.

Is swimming in the hot springs safe?
Yes, the hot springs are accessible via ladder and are a popular activity during the stop.

How crowded does the tour get?
With a maximum group size of 70 travelers, it maintains a comfortable atmosphere.

Who operates this tour?
It is operated by Dakoutros Bros J.V..