Guided snorkelling to discover the posidonia meadows

Activities

Guided snorkelling to discover the posidonia meadows

Free cancellation

Language: English

Mobile voucher accepted

Duration: 2 hours 30 minutes

Instant confirmation

Smaller group size

Subject expert guide

E-Voucher

Why you’ll love this…

The precious underwater posidonia seagrass meadows, a local treasure
The chance to give a close up look at the "Amazon of the Mediterranean", and its ecosystem
A snorkelling experience with a master diver who knows the caldera and Santorini inside and out
This activity is part of the collaborative initiative Cyclades Posidonia Alert, the money raised will be used to support the protection of this important part of Aegean marine life

What to expect

From the hidden "Caldera" beach on Santorini's southern curve, an expert dive instructors will equip you with snorkelling gear and safety guidelines. After an introduction to the environment and marine life of Santorini’s sea, the diving team will guide you into the water to gently glide over the terrain of verdant posidonia meadows and dramatic rock formations. You'll uncover the distinctive life that resides in this unusual underwater caldera landscape, exploring a world beyond typical dimensions.

Posidonia seagrass, which can live for over 100,000 years, radiates an aura of otherworldly majesty. Recently acknowledged as a vital life source for the Mediterranean, it's something everyone should get excited about. Posidonia supports thousands of sea creatures as a home, nursery and food source. It's not seaweed but seagrass - absorbing carbon dioxide and releasing oxygen just like terrestrial plants. Unique to the Mediterranean, it spans vast stretches of coastline and is even visible from space. It stores massive amounts of carbon, making it a 'blue carbon' source. Moreover, it safeguards beaches from swell and contributes significantly to beach architecture and ecology.

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What's included

Water
Use of equipment
Pick-up and drop-off from designated areas
Roundtrip transportation
Certified instructor
Snorkeling

What's not included

Snacks
Sunscreen
Towels
Bottled water

Where

Meeting point:

Pick-up available at the location and time agreed with the local organizer.

What to remember

Accessibility:

Guests must be able to swim to take part in the activity

Know in advance:

The minimum age to take part in this activity is 8 years old
This experience is part of the initiative Cyclades Posidonia Alert, led by the Cyclades Preservation Fund, to help protect the Aegean sea. Your €1 booking fee will go directly to local underwater clean-ups to protect Posidonia
This activity has an easy difficulty level
The maximum number of people per group is 8
After the confirmation of your reservation, the local operator will contact you to confirm the pickup time and place

Remember to bring:

Bathing suit, towel and sunscreen

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Provider

G.& E.MICHALAKIS SA -GEM TRAVEL

Booking fee

Good news! No extra fees are applied to this booking.

Cancellation policy

Receive a 100% refund if you cancel up to 24 hours before the experience begins.

What people say about this experience

Excellent

5 /5

Based on 3 reviews from verified customers

T
TUI Musement Traveler
Verified booking
5
28 September 2025
Great informative talk with Demetri and Andrea, followed by a swim to see the Pasidonian meadows. The sea was a bit choppy on our day, but we both felt safe and well looked after. The meadows are beautiful, and the day really highlights the effect we as humans have on our oceans. A humbling day.
T
TUI Musement Traveler
Verified booking
5
7 September 2025
This guided snorkelling experience was the best thing we did in Santorini! From the pick up to the briefing,the team were excellent. The snorkelling was fascinating and we learned so much about the island and ecosystems that support it. I would highly recommend this activity :)
T
TUI Musement Traveler
Verified booking
5
31 August 2025
I think for thr price this was fantastic. The instructors were friendly and knowledgeable. My girls and girlfriend really enjoyed this.

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