Los Túneles Tour on Isabela: Is It Worth It? Wildlife, Snorkeling & What to Expect
Los Túneles can deliver turtles, rays, reef sharks and surreal lava formations. It can also involve an extremely rough speedboat ride. The sea conditions made a bigger difference than I expected.
The Los Túneles tour from Puerto Villamil is routinely described as one of the must-do experiences on Isabela Island, and sometimes even as the best day tour in the Galápagos. That was not my experience. I saw a lot of marine life, enjoyed snorkeling through mangroves and shallow volcanic channels, and liked walking over the lava formations at Cabo Rosa, but our journey there was so violently choppy that it changed how I think about recommending the tour.
My verdict is positive, with one big qualification: Los Túneles is worth the trip when the sea is reasonably calm. When the ocean cooperates, it is an unusual combination of volcanic landscape and wildlife-rich snorkeling. When the sea is high and rough, much of what makes the place attractive becomes harder to appreciate, and the speedboat journey can become the dominant memory of the day.
Affiliate disclosure: Some links below are affiliate links. If you book through them, I may earn a commission at no extra cost to you. Wildlife sightings, sea conditions, equipment and exact itineraries vary by day and operator, which is particularly important for Los Túneles.
Snorkeling in Cabo Rosa Tunnels
The current listing describes an approximately five-hour small-group trip with a maximum of ten travelers. Snorkeling equipment and a wetsuit are presently listed as included. That is worth checking before you book because equipment varies between operators; on my own tour we received a mask and snorkel but no wetsuit.
Check Los Túneles availability
Los Túneles was worthwhile, but not an automatic must-do regardless of conditions. The state of the sea changes the experience enormously.
My day at Los Túneles
My Los Túneles Tour, from Start to Finish
Meeting at the agency in Puerto Villamil
Our day started at the tour agency near Puerto Villamil’s main square. From there we joined a small group and headed to the boat. This is very different logistically from a Santa Cruz excursion such as Bartolomé: you are already staying on Isabela and the operation feels comparatively small-scale.
A small speedboat toward Cabo Rosa
Our speedboat held roughly eight people and was perfectly adequate for the group size. The boat itself was fine. The ocean was anything but calm on the day we went, which turned the journey toward the western side of Isabela into the most difficult part of the excursion.
The boats used for Los Túneles are small enough that ocean conditions matter. Ours had enough room for the group, but September gave us a very rough ride.
Do not underestimate the sea conditions.
Our crossing was extremely choppy. There were moments when the movement of the small speedboat felt borderline unsafe to me, rather than merely uncomfortable. That does not mean every Los Túneles trip is like this, but it completely changed my view of the tour: if the sea is already rough, postponing makes more sense than pushing ahead with a fixed plan.
What Is the Best Season for a Calmer Los Túneles Trip?
We visited in September, which in retrospect was not an ideal month for someone who dislikes rough boat rides. The cooler Galápagos season generally brings stronger winds and choppier seas, particularly from June into September. The warmer period around January to April normally has lighter winds and calmer water.
That does not mean September is a bad month for the Galápagos. Marine activity can be excellent, and we had an unusually calm sea on our Bartolomé trip during the same journey. The important point is that conditions can vary sharply from one day and route to another. For Los Túneles, the marine forecast matters far more than a sunny forecast for Puerto Villamil.
Once we finally got there
The Lava Tunnels and Arches at Cabo Rosa
Los Túneles was created by lava flowing toward the sea and leaving a network of arches, bridges and shallow channels as parts of the formations later collapsed. From the boat and on foot, the area looks like a maze of black lava surrounded by blue-green water and mangroves.
We landed and walked over sections of the lava formations before moving on to the snorkeling areas. I liked them, but this was not a Bartolomé-level “wow” moment for me. The formations are at their best when the sea is low and calm enough that the arches, channels and pools are clearly defined. With high or rough water, some of that visual effect is lost.
That is another reason I think conditions matter so much here. Los Túneles is not simply a snorkeling location where rough water affects only the boat ride. The water level and movement also influence how attractive the actual tunnels feel once you arrive.
The strongest part of the tour
What Is the Snorkeling at Los Túneles Really Like?
The snorkeling was where Los Túneles delivered for us. We entered the water at a couple of different sites, including shallow areas around mangroves where marine life congregates. Much of the snorkeling takes place in relatively protected water once you are inside the Cabo Rosa system, which was a welcome contrast with the rough open-water journey required to reach it.
We saw sea turtles, eagle rays, stingrays, reef sharks, an eel, an octopus and plenty of colorful fish. I cannot identify every shark species with certainty from the photographs and my notes, but there was no shortage of marine life.
One of the most reliable and enjoyable wildlife encounters on our snorkel.
One of the more memorable animals we encountered underwater.
Another reason the shallow snorkeling areas felt wildlife-rich.
We saw sharks, though I cannot confirm the exact species.
Easy animals to miss without spending time looking into the rocky and mangrove habitat.
Plenty of fish and good variety alongside the larger wildlife.
We encountered reef sharks during the snorkeling. Los Túneles is one of those places where a good guide helps because much of the wildlife is hidden under ledges, inside channels or around the mangroves.
Will You See Seahorses, Penguins and Sharks?
Possibly, but treat the wildlife lists used to sell Los Túneles as possibilities, not promises. Current tour descriptions and traveler reports include everything from seahorses and penguins to white-tip and blacktip reef sharks, sea turtles, rays, sea lions and blue-footed boobies. That describes what the ecosystem can produce, not what every group will see.
We had an excellent variety of underwater wildlife but I do not remember seeing a seahorse or penguin at Los Túneles itself. Our penguin encounter came later around Tintoreras. This is exactly why I prefer judging the tour on the quality of the whole experience rather than measuring it against a checklist of animals an operator cannot guarantee.
Do You Need a Wetsuit at Los Túneles?
Our operator provided basic snorkeling gear, but I did not receive a wetsuit. Current tour products can be different; the Los Túneles option linked in this article presently lists a wetsuit as included.
If you are traveling in the cooler part of the year, confirm this before paying. Water around the Galápagos is cooler from roughly May into November, and even if you are comfortable when you first enter, a longer snorkeling session can feel different after twenty or thirty minutes.
The value question
Was Los Túneles Worth the Money for Me?
I remember paying the equivalent of roughly $150 per person. The wildlife we saw was good enough that I do not regret spending the money, but I also came away thinking the experience was a little expensive for what we ultimately received, especially once the rough crossing was factored in.
That does not mean Los Túneles is poor value. It means value here depends unusually heavily on the day you get. Calm sea, clear water, an engaged guide and strong wildlife sightings can produce a superb excursion. Rough open water followed by average visibility and fewer animals would make exactly the same price feel very different. This pay-for-what-you-choose approach is also a key consideration in my Galápagos cruise vs land-based comparison.
Calling Los Túneles the best Galápagos day tour ignores how much experiences vary. I enjoyed it, but Bartolomé was more memorable for me overall because the volcanic landscape, viewpoint, penguins and snorkeling combined into a more complete day. For other options starting from Puerto Ayora, see my comparison of Galápagos day tours from Santa Cruz.
It can deliver excellent wildlife
We saw turtles, several kinds of rays, sharks, an eel, an octopus and plenty of fish while moving through a very unusual volcanic and mangrove environment. In calm conditions, that is a strong Isabela day.
The crossing can dominate the experience
Our speedboat ride was dramatically rough. In similar conditions, postponing is the sensible choice. The destination does not automatically justify a punishing crossing.
Guide Quality Matters More Here Than You Might Expect
Los Túneles contains wildlife that is easy to swim past without noticing. Sharks can be resting under ledges, octopuses disappear against rock and seahorses are famously difficult to spot. A guide who knows exactly where to look can materially change what you see.
Our guide knew the route and wildlife sites, although a little more reassurance about the rough crossing would have helped. Read recent reviews of the specific operator, not just reviews of Los Túneles in general.
The comparison I wish more people made
Los Túneles vs Las Tintoreras: Is the Expensive Tour Really Better?
This is where my experience becomes a little awkward for the usual Los Túneles sales pitch. On our way back toward Puerto Villamil we also visited the Tintoreras area, much closer to town, and that is where we got close to Galápagos penguins.
Tintoreras is a shorter and considerably cheaper outing. It does not have the same extensive Cabo Rosa lava formations or the remote feeling of Los Túneles, but its wildlife can be excellent: marine iguanas, sea lions, rays, reef sharks, turtles and penguins are all possible around the islets. Current dedicated tours are typically around three hours rather than most of a day.
If snorkeling is a major Isabela priority
You are paying for the more remote Cabo Rosa setting, a larger snorkeling component, mangrove habitat and the unusual lava arches. It is the stronger option for a full marine excursion when conditions are good.
If value matters more
It is close to Puerto Villamil, much shorter and usually far cheaper. We saw penguins there ourselves, and I agree with travelers who argue that you can get an impressive amount of wildlife for considerably less money.
Las Tintoreras Snorkeling & Wildlife Tour
If Los Túneles is outside your budget, you are not necessarily missing Isabela’s best wildlife. The current Tintoreras excursion is roughly three hours and combines a short lava-islet walk with snorkeling. This is also where we had our close penguin encounter.
Check Tintoreras tours
Los Túneles vs Bartolomé: Which Did I Prefer?
Of the two excursions, Bartolomé was my favorite. That is not because its snorkeling was objectively better. Los Túneles arguably gave us a broader spread of marine wildlife. My firsthand Bartolomé Island day-trip review covers that excursion in detail.
Bartolomé simply felt like the more complete day to me. We had the iconic volcanic panorama, a walk through an almost barren landscape, a comfortable catamaran, good snorkeling, Galápagos penguins swimming among us and a walk over the lava flows on Santiago. Los Túneles was more narrowly focused on the marine ecosystem and volcanic channels.
If snorkeling is your priority, you may easily reach the opposite conclusion. If you are building a wider Galápagos itinerary with several underwater experiences already included, Bartolomé adds more variety.
Los Túneles makes most sense if you want wildlife-rich snorkeling and have a decent sea day.
Los Túneles is a good fit if marine life is one of your main reasons for staying on Isabela, you are comfortable in the water and conditions are sensible. It is less appealing if you hate rough speedboats or already have several major snorkeling trips booked.
Before paying
What to Check Before Booking Los Túneles
Ask about the marine forecast, especially in the cooler, windier months.
A small speedboat is normal, but condition, cover and group size still matter.
Do not assume every operator supplies one just because another tour does.
Smaller groups are much easier once everyone enters narrow snorkeling areas.
An attentive guide makes a major difference when locating hidden marine life.
Know your options if conditions deteriorate before departure.
How many nights should you give Isabela?
My Galápagos itinerary shows how I combine Santa Cruz and Isabela over 7, 10 and 14 days, including enough time for major excursions without turning every day into another boat ride. Still choosing your islands? My Santa Cruz vs Isabela vs San Cristóbal comparison explains the differences in atmosphere, wildlife and logistics.
See my Galápagos itineraryPlanning Isabela as part of a larger Ecuador trip?
My two-week Ecuador itinerary combines Quito, a proper Yasuní stay and the Galápagos, including multiple nights on Isabela rather than trying to visit it as a rushed day trip.
See my Ecuador itineraryQuick answers
Los Túneles Tour FAQ
Is the Los Túneles tour worth it?
I think it is worth doing if marine wildlife is a priority and sea conditions are reasonably calm. We saw turtles, rays, reef sharks, an eel, an octopus and plenty of fish. In rough seas, the small-speedboat crossing can become extremely uncomfortable.
Is Los Túneles the best tour in the Galápagos?
It was not the best Galápagos tour for me. I enjoyed it, but Bartolomé was more memorable because it combined landscape, wildlife, snorkeling and a more comfortable overall journey. Travelers who prioritize snorkeling above everything else may prefer Los Túneles.
How rough is the boat ride to Los Túneles?
It depends heavily on conditions. Our September ride was extremely choppy and at moments felt borderline unsafe to me. Other travelers have much calmer trips. Ask about current sea conditions rather than assuming every crossing is similar.
What is the best time of year for Los Túneles?
January through April generally brings lighter winds and calmer seas around the Galápagos, while June through September tends to be choppier. Wildlife is present year-round, but for this excursion the sea conditions deserve particular attention.
What wildlife can you see at Los Túneles?
Possible sightings include sea turtles, rays, reef sharks, sea lions, eels, octopuses, seahorses, penguins and many fish species. On our own trip we definitely saw turtles, eagle rays, stingrays, sharks, an eel, an octopus and plenty of fish. Wildlife is never guaranteed.
Can you see penguins at Los Túneles?
Penguins are possible, but we did not see them at Los Túneles itself. Our close penguin encounter came around Las Tintoreras near Puerto Villamil later in the day.
Do you need a wetsuit for Los Túneles?
It depends on the season and your tolerance for cooler water. Our own operator supplied basic snorkeling gear but no wetsuit. The current tour linked in this guide lists wetsuit use as included, so check what your specific operator provides.
How long is a Los Túneles tour?
Many current excursions run for roughly five hours, including the speedboat journey, lava formations and snorkeling. Exact schedules vary by operator and conditions.
Los Túneles or Tintoreras: which is better?
Los Túneles offers the more extensive snorkeling excursion and the unique Cabo Rosa lava formations, while Tintoreras is much closer to Puerto Villamil, shorter and cheaper. We saw excellent wildlife at both, including penguins around Tintoreras, so budget travelers should not dismiss the cheaper option.
Los Túneles or Bartolomé: which would you choose?
I personally preferred Bartolomé because the overall day was more varied and memorable. Los Túneles may be the better choice if underwater wildlife and snorkeling are your main priorities.
My conclusion
Would I Do Los Túneles Again?
Yes, on a calmer day.
Once we reached Cabo Rosa, the experience was good: unusual lava formations, mangroves, shallow snorkeling and an impressive amount of marine life. Turtles, rays, sharks, fish, an eel and an octopus made the underwater part worthwhile, and I am glad I saw a part of Isabela that feels very different from Puerto Villamil.
The problem was getting there. Our September crossing was rough enough that repeating it in similar conditions has no appeal. Los Túneles is often marketed as though the only decision is whether you can afford the tour. I think the more useful question is whether the conditions on your available day justify taking a small speedboat into open water.
With calm water, Los Túneles is well worth considering. With the sea we had that morning, Tintoreras, a walk along Puerto Villamil Beach and some money left in the pocket sound much better.
Los Túneles was worth seeing. I just wish someone had warned us how much the sea conditions could shape the day.
Reviewed October 2026. My comments on the boat ride, snorkeling, lava formations, wildlife and value are based on my own Los Túneles trip from Puerto Villamil. Tour inclusions and prices can change; check the operator listing before booking. Sea-condition guidance was cross-checked against current Galápagos conservation information. Exact itineraries, wildlife sightings, equipment and sea conditions vary.
Last Updated on 30/10/2026 by Panos
