Galápagos Expedition, Day 4: Flamingos, Penguins, and Lava on Rábida and Bartolomé

The Galápagos Islands continued to impress us, and the expedition crew always managed to find something different for us to experience Rábida and Bartolomé offering entirely different experiences from the days before. From American flamingos in a secluded lagoon to volcanic formations and curious penguins, this day was packed with wildlife encounters and geological wonders.

Rábida: Brackish Lagoons and Flamingos

Our morning began before breakfast with a nature walk on Rábida Island, known for its deep red volcanic sands and its brackish lagoon. The lagoon is home to a small population of American flamingos, one of the Galápagos “Big 15” species. Our guides told us the odds of seeing them were low, so we considered ourselves fortunate to catch several wading gracefully in the shallows.

Among them was a juvenile with distinctive blue legs – a telltale sign of its age. We also got a good look at their black-tipped wings, which I never even knew existed. Flamingos, surprisingly strong fliers, most likely reached the Galápagos from mainland South America. One interesting fact the guides pointed out was how what looks like their knees are actually their ankles. They get their pink colour from their diet.

We returned to the ship for breakfast after our walk. One of the passengers had a health scare that morning; he collapsed on the ground as we were observing the flamingos due to low blood sugar. Thankfully, he recovered quickly. He was lucky that it didn’t happen when we were on more rugged terrain.

Glass-Bottom Boat Ride

After breakfast, we boarded a glass-bottom boat to observe marine life without getting wet. While it sounded ideal in theory, the reality proved less comfortable. The rocking of the boat while staring down made it easy to feel seasick.

Bartolomé: Snorkelling and Penguins

After lunch, we visited Bartolomé Island, a small but geologically striking islet famous for its towering volcanic spire, known as Pinnacle Rock. We began with a snorkelling session around the base of it.

After several days in the water, I started feeling more at ease, whereas before I never felt comfortable in the water, and this made the session much more enjoyable. We started to swim around the rock. The underwater scenery was rich with life: bright schools of fish, the occasional shark.

Later we found out that one snorkeller returned with rashes after being unknowingly stung by jellyfish (apparently from a few days ago, but didn’t the rashes didn’t appear immediately). None of us had realized jellyfish were in the water.

Volcanic Landscapes and Iconic Views

Later in the day, we hiked to the summit of Bartolomé to take in its famous view – the one often featured in postcards of the Galápagos. The trail was constructed with a special local hardwood known for its resistance to salt and corrosion. The path included many stairs, which made some hesitate, but was no problem for me. Funny thing is that the guide was panting harder than I was.

As we walked up, the black lava fields and stark, dry terrain stood in contrast to the more vegetated islands. Bartolomé is relatively barren, and is considered a geologically young island, having emerged from volcanic activity only a few hundred thousand years ago. Unlike older islands that have had time to accumulate soil and vegetation, Bartolomé’s surface is still largely exposed lava, ash, and tuff. Because it hasn’t developed significant plant cover or topsoil, its ecosystem remains in an early stage of ecological succession, providing a glimpse into what the earliest phases of island formation look like in the Galápagos.

Lava tubes scar the landscape – formed when the outer crust of a lava flow solidifies while the molten core continues to move. When the lava drains away, it leaves behind hollow tunnels. The ropey textures we saw on the ground were from lava flows, which cool into smooth, undulating surfaces.

The summit offers a sweeping view of Pinnacle Rock and the surrounding islets. From this vantage point, we could also see the contrast between the barren lava terrain of Bartolomé and the greener neighbouring islands like Santiago. The turquoise waters outlined the curves of the coastline, and we could spot sea birds gliding in the air currents.

After the hike, we took a short boat ride along the shoreline and spotted several more Galápagos penguins perched on the rocks. These curious birds seemed unfazed by our presence, occasionally flapping their wings or hopping between stones. We got to see a closer view compared to snorkeling.

Evening Science and Stargazing

Those who had opted out of the climb spent time with the ship’s naturalists collecting seawater samples. After dinner, they showed us the samples under a microscope. Even in just 3 mL of seawater, we saw fish eggs, miniscule shrimp-like creatures, and other microorganisms. Then I wondered how many of them I ingested from accidentally drinking the seawater while snorkeling.

Later that night, the skies cleared and we joined the guides on the top deck for a stargazing session. Thanks to our equatorial position, we could see both northern and southern constellations. The guide used a powerful laser pointer to trace the outlines of Scorpio, Libra, the Southern Cross, and even Ursa Major. They pointed out bright stars and planets like Antares, Alpha Centauri, and Beta Centauri. The clarity of the sky, with minimal light pollution, made the session feel so much richer than at a planetarium. This day was so much more than just wildlife. It combined also geology, and scientific curiosity.

See the photo albums to explore more of Rábida and Bartolomé.