Tours/Athens/Viator
Viator · group up to 15 pax

3-Hour Small Group Coasteering in Sounio

5.0(13)Athens1 hour
VIATOR5.0(3)TRIPADVISOR5.0(10)

Description

The funnier and more refreshing summer activity, with a little bit of adrenaline, combines hiking, climbing on rocks, bouldering, cliff jumping, and swimming - snorkeling in the turquoise waters of the Aegean Sea, above the Temple of Poseidon. All Greece - mythology, sea, and sun - in one activity!

Tour Options

3-Hour Small group Coasteering

Highlights

Life vest
Mask & sea snorkel
All Fees and Taxes
Helmet
Wetsuit
Shoes

What's included

Included
Life vest
Mask & sea snorkel
All Fees and Taxes
Helmet
Wetsuit
Shoes
Not included
Bottled water
Snacks
Transportation (depending on the number of participants and location)

Pickup Locations & Times

Transportation is upon request at an extra cost. We are in touch through Email or WhatsApp the day before the activity.

Traveller Ratings

5.0
13 reviews
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13
4
0
3
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2
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Important Information

  • Public transportation options are available nearby
  • Not recommended for travelers with spinal injuries
  • Not recommended for pregnant travelers
  • Not recommended for travelers with poor cardiovascular health
  • Travelers should have at least a moderate level of physical fitness

Reviews(13)

M
Marc_G
June 1, 2026
Jumping off rocks!

Two middle-aged parents and two teenage boys jumping off rocks into the Mediterranean Sea. What could go wrong? Nothing. Our 14 year old son said this activity was EXACTLY what he wanted. After meeting our excellent guide, suiting up in wetsuits and neoprene shoes, we were off on a short hike through the beautiful flowering seaside hills to take a dip in the sea. Then we climbed our way to about half a dozen spots where we could jump from the cliffs at various heights. We also climbed up and down some spots with the help of a rope. The entire time our guide lead us expertly through the trail and we always felt safe. We ended with a long snorkel to the end of our trail where we saw fish (and maybe an eel) through clear blue waters. After our tour, we ate lunch at one of the seafood restaurants nearby. An excellent tour! Note: if traveling by taxi to the meeting point in Sounion, be aware that the taxis/rideshares do not like to pick up riders traveling back to central Athens. We solved this by taking a rideshare about half way (Vouliagmeni) and then taking a second car from there to Central Athens.

S
Sharon_G
September 5, 2025
Great experience

Great experience. The area is beautiful, lots of different activities packed into one. You hike, scramble over boulders, cliff jump, snorkel. Our guide was great, she took pictures and sent them to us after. She helped arrange a driver for us from Athens who waited and let us visit the temple of Poseidon after before heading back to Athens. I have always been hesitant to cliff jump and figured I would not to any of them, but she started us on just a very small jump and kept moving us up to slightly bigger jumps. I jumped off much higher than I ever expected I would be willing.

Operator response

Dear Sharon, Thank you so much for your wonderful words and for trusting us with this adventure! 🌊✨ We’re truly happy that you felt safe to try new things and even go beyond what you expected. It means a lot to us to know that you enjoyed both the activities and the extra touches, like the photos and the visit to the Temple of Poseidon. We hope to see you again for more adventures in the future! Best regards,

P
Patricia A
August 23, 2025
Great experience!

Nikki did a great job! The hiking wasn’t too difficult, and the snorkeling was a nice treat. You get to jump off of smaller and then larger jumps. She goes through all the safety measures, so you feel secure. Still, it was a great thrill!

Operator response

Dear Patricia, Thank you so much for your lovely feedback! We are really happy to hear that your family enjoyed the hike, the snorkeling, and of course the jumps – it means a lot to know that the boys felt safe while still having a great thrill. We hope to see you all again soon for another adventure!

9
901pierrealexandred
August 6, 2025
Wonderful constant trip

We had a wonderful time with Nikki and Billy, they have a lot of expérience and background in outdoor activities. They are really professional and they adapted the activity to the skill of the Group We really recommend taking them if you want to have a mémorable Time The activity have been the highlight of our greece trip Thank you

Operator response

Dear Pierre and family, Thank you so much for your kind words! It was truly a pleasure having you with us, and we're so happy to hear that the activity was a highlight of your trip to Greece. We always do our best to adapt each experience to the group’s needs, and it's wonderful to know it made a difference for you. Wishing you many more great adventures—and hopefully, we'll see you again one day! Warm regards,

S
Susie_F
July 3, 2025
Amazing bucket list experience

Our tour guide Nikki was knowledgable, strong and compassionate. She helped me get through a few tough moments with her encouraging words and calm presence. My family had an amazing day filled with physical challenges, fun and excitement. The environment was beautiful.

Operator response

Thank you so much for sharing this lovely feedback. Nikki was truly delighted to meet you and your family. She mentioned how strong you also were and how much she enjoyed guiding you through this beautiful adventure. It means a lot to her to know that you felt supported and encouraged. We all hope to welcome you back again for more wonderful experiences!

D
davidjQ7421BO
May 27, 2025
Just go!

Our family had a fantastic time with Niki and Base Outdoor Activities. I'd rate it the best day of our time in Greece. Niki is an experienced tour operator and a talented outdoor specialist who makes the time spent Coasteering a lot of fun. Highly recommend!

Operator response

Dear David, Thank you so much for your wonderful words — they truly mean a lot to us. It was such a pleasure having you all with us, and we’re genuinely happy to hear that your Coasteering day was a highlight of your time in Greece. The energy, spirit, and trust you brought into the experience made it just as special for us! We’re always grateful to meet families like yours — open, adventurous, and present in every moment. Wishing you many more joyful travels and unforgettable adventures. And who knows — maybe we’ll cross paths again someday!

C
Compass27124803213
May 22, 2025
COASTERRING

Great caring, listening and funny team! The place is beautiful and the jumps are great! I recommend 200%! We were a group of 10 friends and loved it unanimously

Operator response

Dear Marine, thank you so much for your wonderful words! It was a real pleasure having you and your amazing girl-group with us. We’re so happy to hear you all had such a great time and enjoyed the jumps and the beauty of the location! Your energy and smiles made the day even better for us too. We truly appreciate your recommendation! Hope to see you again for another adventure soon!

K
K1607DVrond
September 10, 2024
Top experience!

We had a wonderful time with the coasteering team. Niki and Billy created a very good vibe and stimulated every member of our group to push his boundaries. It was a great activity with much variation and a clear goal in a beautiful environment. We look back on it with great pleasure!

Operator response

Thank you so much for your kind words! It truly means a lot to us to hear that you had such a wonderful time coasteering with us. We’re really happy for your review— it’s always our goal to help each person push their limits in a fun, safe, and positive way. We’d love to welcome you back anytime for another adventure in nature. Keep traveling, keep exploring, and keep challenging yourselves — the world is full of magic!

L
Lu_LAS99
May 20, 2024
An incredible experience with incredible people

We had an incredible time coasteering with the BOA team: Niki, Konstantinos, Vasilies and George around Sounio. It’s a beautiful route that includes climbing, repelling, cliff jumping and snorkelling. The team are amazing, funny, friendly, and knowledgeable, they shared Greek mythology stories as we climbed and their expertise ensured that we felt safe at all times. The team were able to offer transport from near Athens for a reasonable fee so it’s worth asking if you need transport. We both agreed it was our favourite day on holiday, I’d definitely recommend! Thank you team x

Operator response

Thank you for the time you spent writting a review for our team and the activity! Is so important for the rest of people who would like to do something not common close to Athens and makes us better every day!

D
davidhJ7309IJ
November 17, 2023
Great time - spectacular adventure

Hiking, swimming, climbing, jumping, and repelling under the temple of Poseidon. They accommodated our last-minute sign-up and ensured we had a great time. We'd do it again, and recommend it without hesitation.

Operator response

It's wonderful to see unique places without being crowded, have a great time, and be safe, while you are on vacation! Keep being adventurous, while you protect, and enjoy nature!