Cabo Rosa Tunnels Snorkelling Tour, Isabela Island
Lava that ran into the sea, cooled into arches and then collapsed, leaving a maze of shallow channels you snorkel through. Five hours out of Puerto Villamil, rated 4.5 from 70 Viator reviews, with the wetsuit and gear in the price.
Listing details checked by Oleg Galeev, who has been to the islands three times
Check live availability & prices on Viator → See the key facts
Operator's own figure: 4.5 from 70 Viator reviews, free cancellation 24h before
Short answer
A five-hour trip run by Galápagos Native Tour Operator from Puerto Villamil on Isabela, out to the Cabo Rosa lava tunnels for snorkelling. Private transport, snorkel equipment, a wetsuit and breakfast are included, pickup happens ten minutes before the start, and cancellation is free up to 24 hours before. The price appears in the booking flow.
Cabo Rosa tunnels tour: the key facts
Read from the operator's live Viator page. You need to already be staying on Isabela for this one, which is the single biggest planning point.
| Full listing name | Snorkeling in Cabo Rosa Tunnels Isabela Island |
|---|---|
| Operator | Galápagos Native Tour Operator |
| Platform and rating | Viator, 4.5 from 70 reviews |
| Duration | 5 hours (approx.) |
| Departs from | Puerto Villamil, Isabela Island |
| Meeting point | Pickup at the place agreed in advance, starting ten minutes before the tour |
| Price | Shown in the booking flow. The product page carries no figure. |
| Cancellation | Free up to 24 hours in advance for a full refund |
Seventy reviews at 4.5 is a solid middle position in this small market, and the free cancellation matters more than the half-star gap to the top-rated boats. A second operator sells a Los Túneles trip from Isabela at $228 with a 4.0 rating from three reviews, which tells you how differently the same site gets packaged and how little three reviews can support.
What the price covers, and what it does not
Four items, and breakfast rather than lunch is the one that tells you about the shape of the day: this is a morning trip that has you back in Puerto Villamil for a late lunch of your own.
On the operator's included list
- Private transportation
- Use of snorkelling equipment
- Use of a wetsuit
- Breakfast
Not on that list
- Lunch. Five hours, so eat properly when you get back
- Getting to Isabela in the first place, $30 to $35 each way on the lancha from Santa Cruz
- The $200 national park entrance fee, paid to rangers on arrival in the islands
- The $20 Transit Control Card, bought online before you fly
Isabela is the cheapest island to take tours from, with day trips generally running $75 to $187 against $145 to $245 out of Santa Cruz. Getting there is the cost people forget: the crossing from Puerto Ayora takes two to two and a half hours each way, and there is no direct route from San Cristóbal. The park's official tariff page carries the fee amounts, which rose to $200 for foreign adults on 1 August 2024.
How the five hours run
Short by Galapagos standards, and deliberately so. The listing publishes the pickup arrangement and the duration rather than a timetable, so the sequence below marks what is stated and leaves the rest open.
- Pickup. Ten minutes before the start, at the place agreed when you book. Puerto Villamil is small enough that this is rarely more than a few streets.
- Breakfast. Included, which is welcome on an early start.
- The run down the coast. Cabo Rosa sits west of Puerto Villamil along Isabela's southern shore. The boat crosses a shallow shelf, and the approach through the surf line is the part crews take slowly.
- The tunnels. Arches and channels of collapsed lava, shallow and clear. Boats thread between them rather than moor up.
- Snorkelling. Gear and a wetsuit are provided. The water here is protected by the rock rather than exposed, which makes it far calmer than an open-water site like Kicker Rock.
- Back after about five hours. Returning to Puerto Villamil with the afternoon still ahead of you.
Park rules apply throughout: a certified naturalist guide at protected sites, two metres from any animal even when it approaches you, and no drones anywhere in the park or the marine reserve. The published visitor rules are enforced here as everywhere else.
What makes Cabo Rosa different from every other snorkel here
Most Galapagos snorkelling happens in open water off a rock or an island shore, which means swell, depth and a certain amount of holding your nerve. Cabo Rosa is the opposite. Lava flowed into the sea, cooled into bridges and arches, then collapsed in places, leaving a shallow lattice of clear channels close to the surface.
That geology is why it suits nervous swimmers and photographers alike, and why the site is on almost every Isabela itinerary. Galapagos penguins are among the birds people hope for on this coast; they breed year-round in the archipelago, with nesting possible from May to December, which the Conservation Trust's penguin page explains in more detail. Nobody can promise you one, and a tour that does is selling rather than informing.
If you are on Isabela for a couple of days, this pairs naturally with the sites around town. If you are still based on Santa Cruz, the Isabela day trip from Puerto Ayora reaches the island and back inside ten hours, ferry included. For the opposite kind of snorkel, deep and open and exposed, the Kicker Rock full day on San Cristóbal is the other end of the spectrum. Which season you pick changes the water temperature by four or five degrees, and our season guide lays that out.
Honest pros and cons
What works
- Free cancellation up to 24 hours before, unusual among the tours here.
- Wetsuit and gear included, with pickup arranged rather than an office meeting.
- Sheltered, shallow water, which suits weaker swimmers and underwater cameras.
- Five hours, so the rest of the day stays yours.
- Isabela tours are the cheapest band in the archipelago, $75 to $187 as a group.
What to weigh
- No price on the product page until you enter the booking flow.
- You must already be on Isabela, which means a two to two and a half hour crossing to get there.
- Breakfast but no lunch, on a trip that runs through the middle of the day.
- 4.5 from 70 reviews is respectable rather than outstanding.
- The approach through the surf line gets cancelled in bad conditions, which is the operator's call and not yours.
Who checked this listing
Oleg Galeev has been to the Galapagos three times and has catalogued hundreds of tours and cruises for the platform he runs. He has not taken this trip, and this page is written as reporting on the listing rather than as a first-hand account.
Duration, inclusions, pickup arrangement, operator and cancellation terms are read from the live Viator page. Ferry fares and times, park fees and penguin breeding timing come from Ecuadorian government sources and the Galapagos Conservation Trust. Where the listing publishes no price, this page prints none.
We earn a commission if you book through our links, at no extra cost to you. It never changes what we write about a tour. How this works.
Where Cabo Rosa is
West of Puerto Villamil along Isabela's southern coast, out past the point where the lava fields meet the water.
Puerto Villamil, where the tour starts, is on the island's southeastern corner.
Cabo Rosa tunnels tour: common questions
How much does the Cabo Rosa tour cost?
This operator does not publish a figure on the product page; it appears once you choose a date in the booking flow. Isabela day tours generally run $75 to $187, the cheapest band of the three inhabited islands, and a competing Los Túneles listing from another operator shows $228. We will not print a number this listing does not display.
Is Cabo Rosa the same as Los Túneles?
Yes. The lava tunnel formations off Isabela's south coast go by both names, and different operators use different ones on their listings. Cabo Rosa is the headland; Los Túneles is what the channels get called locally.
Do I need to be a confident swimmer?
Less so than at the open-water sites. The tunnels are shallow and sheltered by the rock, which is exactly why this trip suits people who found Kicker Rock or an island crossing intimidating. A wetsuit is included and adds buoyancy. The approach through the surf line is the operator's problem rather than yours.
Can I do this as a day trip from Santa Cruz?
Not this listing. It starts with a pickup in Puerto Villamil, so you need to be staying on Isabela. If you are based in Puerto Ayora, the ten-hour Isabela day tour reaches the island and returns the same day with the speedboat crossings included.
What happens if the sea is too rough?
The site sits behind a surf line that boats have to cross, and operators cancel when conditions do not allow it. The free cancellation policy protects you if your own plans change; a weather cancellation by the operator is handled under the platform's terms. Book earlier in your stay so you have a spare day to reschedule into.