Cabo Rosa Tunnels Isabela Island Galapagos

Cabo Rosa Tunnels: The best snorkeling tour in Isabela

If you’ve ever dreamt of swimming with marine turtles, stingrays, sharks and seahorses. I can help you book the tour to Cabo Rosa tunnels for $130 .

Cabo Rosa Tunnels offers the best snorkeling on Galapagos Islands, hands down (to me!). The tour begins with a stop at la Unión, a small island/rock in the open sea where you’ll observe pelicans, nazca boobies, blue-footed boobies and the occasional sun-bathing sea lion.


Cabo Rosa Tunnels Galapagos Video

Original video by ChokoTrip ©


Trip itinerary:

This tour includes three stops (you can also check out the map at the end of this blog):
Stop 1: la Unión rock followed by a 45 minute boat ride to
Stop 2: Cabo Rosa Tunnels (short hike) and nearby,
Stop 3: Finados (snorkeling)

You’ll first head to a rock called la Unión. After this short spot, you’ll continue by boat for another 45-minutes to get to the Cabo Rosa Tunnels, the most beautiful lavarock formations on the Galapagos Islands. Ancient lava eruptions created the Cabo Rosa tunnels, an expanse of arcs where you’ll observe sea lions and marine turtles weaving their way below the surface of the crystalline water. Here, you’ll get to take a short walk across the lavarock formations and snap some nice pictures.

After this point, the tour will take you to a place nearby known as Finados to snorkel with sea turtles, sharks, golden rays, eagle rays, sea horses and fish, such as sturgeons and damselfish, otherwise known as the demoiselle.

You should know that the vessels that offer tours to these Tunnels aren’t luxurious because they need to be light and fast to enter the areas visited on Isabela. Some days the swell might be strong, which makes navigation difficult but, rest assured, the captains have it under control.

PS: Due to sea conditions (swells and waves) and, depending on the tide, tours into the actual tunnels may be cancelled or reprogramed with short notice. Above all else, the safety of our passengers is our priority.

Cabo Rosa Photos

Original photos by ChokoTrip ©



  • Departure island: Isabela
  • Tour price: US$ 130
  • Available days of the tour: Todos los días
  • Passenger capacity per yacht: 10 personas
  • Pick up: Assigned by operator
  • Travel time to and from the island: 2h (1h each way)
  • Schedule 1: 07h30 to 13h30
  • Schedule 2: 11h00 to 17h00
  • Tour includes: Snorkeling equipment (masks and fins), life vest, towels, boxlunch, snack, water, certified Galapagos National Park guide, land and marine transport.
  • Does not include: Alcoholic drinks, soda, neoprene suit (I recommend renting these during the months of June-December from any operator) and tip.
    * Price does not include 12% tax. (Only charged if you require an invoice.)
    * This tour is not recommended for children from 0 to 2 years old.
    * You definitely need to bring a pair of trekking shoes (lava rocks are sharp!).
    * You can book this tour with a partial payment using two available methods of payment: bank transfer (no additional cost for bank transfers between Ecuadorian banks) or credit/debit card. The remaining payment must be paid directly to the operator upon arrival to the island.



    I can help you reserve this tour with local operators that own the vessels. Instead of wasting time wandering around each island looking for tours, you should be enjoying the places you can visit on your own while at the Galapagos Islands.


    *We work directly with boat owners and tour operators in the Galapagos, thereby avoiding additional costs, unlike travel operators like Viator, Get Your Guide and Civitatis which rely on third-party local operators.

    Interactive tour map


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    Galapagos Travel Guide: Cruise, Tours, Last minute deals



    My name is Christian but you came call me Choko. Together with my wife we have created this blog to help all travelers going to Galapagos 🐢🦀🐧🐬 🐦🦎 I am from Ecuador, born in Guayaquil. Passionate about traveling and everything related to social media. In my free time I travel the americas. I have given conferences and workshops revolving around my work and tourism 2.0 // WRITE ME USING WHATSAPP: +593978990910 - 🇪🇨 BLOG IN SPANISH chokotrip.info


    • Sean

      Fantastic trip. A must for snorkeling in Isabela. Saw huge turtles. Stingrays. Manta rays. Sea horse and even an eel. Guides are great food excellent. Must trip for Isabela. Thanks choko.

      June 23, 2021 at 1:11 pm
    • Carla

      This was a great trip. I especially enjoy our guide Sebastian who was wonderful! Good snorkelling.

      May 21, 2021 at 8:50 am
    • Brian Simpson

      I booked two tours with Choko and enjoyed them both. Christian made everything easy and affordable. The Los Tuneles Cabo Rosa tour was AMAZING! We saw more sea turtles than ever before, as well as a seahorse, reef sharks, tons of fish, penguins, and Blue Footed Boobies. The second tour was Sierra Negra Volcano. This was very interesting but the best part was our guide. He loved what he did and it showed. He had been a guide for more than 30 years and was very enthusiastic about the volcano.

      February 18, 2020 at 11:29 am
    • Robert

      The Tour itself was fantastic. Perfectly organized by choko and the Team. We saw a seahorse, turtles, sharks etc.. everything. Unfortunately we have been a bit unlucky with our female guide at the end of December. She was rude and unfriendly. We she die tell us very rude that we have to respekt the 2m, she took Fotos herself from 0.50m of the baby blue footed Babies. When we asked if we can See Pinguins here when we are lucky she said, it is not a zoo here. Furthermore it was raining a lot in isla isabela, i didn’t like the island.

      January 15, 2020 at 1:11 am
    • Valeria

      One of the best tours from Isabella island. We were snorkeling not far from tunnels with sharks, huge turtles (different kind), sting rays and even saw numerous manta rays on our way back from tunnels. The tunnels are also incredible, fantastic lava formation. We cannot stop taking pictures so beautiful was this scenery and incredible encounter with wildlife.
      Thank you, Christian, for organizing it for us.

      January 14, 2020 at 12:17 pm
    • Matt

      Good trip all around. Boat left a little to be desired but didn’t detract from the day. Would recommend!

      July 4, 2019 at 9:19 pm
    • Rainer

      This was my best snorkeling experience on Galapagos. Snorkeling with Sharks, penguins, turtles and I think 6 small golden manta Rays in formation. Choko gives you his WhatsApp number and you can ask him if you have problems or questions. Thank you Choko with your help. Next time on Galapagos I book my tours with Chokotrip again.

      June 8, 2019 at 1:51 am
    • Krista Parker

      This tour was really good, would definitely recommend. I know some other travelers who missed out because they didn’t book ahead, but this might also be due to us being there over Easter. Saw a lot of animals while snorkeling including sharks and giant turtles. the tunnels part was really cool looking and we saw blue footed boobies.

      May 5, 2019 at 6:54 pm
    • Chris Worswick

      We did 16 nights on San Cristobal, Santa Cruz & Isabela island with trips arranged by Choko. Tunneles & Cabo Rosa was the best trip of the stay. We sailed with boat Tropical. Fast trip first to an isolated rock with great photo ops…then on to the Tunnels where we saw Blue footed Boobies & penguins. Then the highlight the snorkelling at Cabo Rosa…AMAZING..giant sea turtles swimming alongside, sharks in caves, Octopus, Sea Horse & abundance of fish. The captain on Tropical was great he snorkelled with us diving down to show best spots. Nice fresh tuna pasta salad onboard..thanks again Choko

      May 3, 2019 at 3:23 am
    • Kent Casadonte

      One of the highlights of our trip, not to be missed if you are on Isla Isabela, truly amazing. Booking with Choko in advance was perfect as there were no vacancies available the day we wanted to go. I would recommend booking with Choko for any of the tours and ferry boats in advance, to simplify your vacation.

      April 27, 2019 at 6:43 am
    • Tatiana Goldina

      Excellent trip, great guide, magic scenery.

      January 7, 2019 at 2:08 pm
    • Melvin Chong

      I booked my Isabela Island trip and Tuneles Cabo Rosa tour through ChokTrip. Choko has provided his whatapps contact in case if we hit any problem. Days before our trip, Choko has initiated communication with us and has given detailed instruction for us to transfer from the airport to the ferry. Choko also established contact between us and our Tuneles Cabo Rosa tour operator in advance so that we can meetup to try out the wetsuit. If you are traveling to Galapagos for the first time, I would recommend ChokTrip for your traveling need as he is very responsive in helping out. I enjoyed my Isabela Island trip and Tuneles Cabo Rosa tour as everything is well organized.

      September 26, 2018 at 1:43 pm

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