Cave Pool & Lava Tube Swims of Upolu

If you’re after a full-day adventure that mixes natural beauty, a touch of history, and a dash of adrenaline, the Cave Pool & Lava Tube Swims of Upolu tour really ticks those boxes. Based in Va’a-o-Fonoti, Samoa, this excursion promises a chance to explore some of the most striking geological and scenic sites the island has to offer. Though I haven’t done it myself, I’ve seen enough reviews to say it’s an experience worth considering if you love outdoor adventures and authentic natural sights.

What really stands out about this tour are the stunning cave pools and the incredible volcanic landscapes, making it a superb option for nature lovers. Plus, the combination of swimming in crystal-clear waters, exploring lava tubes, and visiting waterfalls gives you a well-rounded taste of Samoa’s natural diversity. One thing to keep in mind is that the tour involves some physical activity—so it’s best suited for those who are comfortable with moderate walking and jumping into natural water spots. If you enjoy outdoor exploration and unique swimming spots, this tour is likely to be a highlight of your trip.

On the flip side, it’s not ideal if you’re traveling with very young children, have mobility issues, or aren’t comfortable getting wet and bending your body in tight cave passages. It’s also a physically engaging day, so if you’re looking for a more relaxed sightseeing experience, it might feel a bit demanding. But for those eager to get off the beaten path and into Samoa’s wild side, this trip hits the spot.

In essence, this experience suits travelers who are adventurous, enjoy scenic hikes, and want an active, memorable day exploring Samoa’s volcanic secrets. It’s especially great for those who appreciate well-organized tours that pack multiple highlights into a single day.

Key Points

• Stunning natural pools: Swim in freshwater cave pools beneath historic sites and explore lava tubes.
• Active day: Moderate physical activity including hiking, steep descents, and cave exploration.
• Beautiful scenery: From waterfalls to volcanic coastlines, views are consistently impressive.
• Unique experiences: Hike through lava tubes and discover hidden cave entrances, adding an element of discovery.
• Family considerations: Not suitable for children under 6 or for those with mobility or claustrophobia issues.
• Small group size: Limited to 6 participants, making for a more personalized experience.

You can check availability for your dates here:

The Experience in Detail

Starting Point and First Stop: Piula Cave Pool

The adventure begins at the Visitor Information Center in Apia, where you’ll meet your guide and board a small group vehicle. The first highlight is Piula Cave Pool, a freshwater spring sitting beneath a historic church. The water here is clear and inviting, perfect for a quick swim that lasts around 40 minutes. What makes this spot special is the chance to swim about 25 meters into the cave and sit on a natural ledge at the end. Many swimmers find the visual effect of their legs glowing with a cyan hue due to the water’s clarity—an odd but beautiful natural phenomenon.

Scenic Drive and Viewpoints

From Piula, the route takes you to Lemafa Scenic Site, which offers brief but stunning views of Samoa’s rugged coastline and lush hills. It’s a quick stop—about 5 minutes—but well worth it for your camera roll. The drive itself gives you a taste of Upolu’s varied terrain, preparing you for what’s ahead.

Rising to the Challenge: To Sua Ocean Trench

Next up is the To Sua Ocean Trench, arguably Samoa’s most famous swimming hole. This is the big draw for most visitors, and it certainly lives up to its reputation. You’ll take a steep descent down a ladder into the volcanic crater filled with saltwater. The descent is a bit daring, but the swim in tidal waters makes it worth the effort. You’ll spend about 1.5 hours here, enjoying the gardens and panoramic views of the coast from above.

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Lunch Break at Vaiula Beach Fales

Following your swim, the tour takes you to Vaiula Beach Fales for lunch. Here, you can enjoy a simple yet delicious focaccia tuna sandwich and relax on the beach. This stop also offers a chance to engage with local community customs, adding a cultural touch to your day.

Hidden Lava Tube Adventure: Vaiula Cave Pool

Post-lunch, you’ll head to the jungle for the highlight of the day—the lava tube cave. Before entering, everyone receives a headlamp or flashlight, essential for navigating the dark, sometimes tight passages. The hike through the lava tube is about 150 meters long and full of interesting features—horizontal sections, a slight talus slope requiring a bend or two, and the thrill of discovery.

Once inside, you’ll encounter crystal-clear cave pools fed by underground springs. The water is pristine, and a short swim takes you to where the lava tube dives beneath the ocean for about 10-15 meters. The experience of squeezing through parts of the cave, combined with the remarkable underground scenery, makes this a truly memorable part of the trip.

Scenic Stop: Papapapaitai Falls

On your way back, there’s a quick stop at Papapapaitai Falls, which drops an impressive 110 meters. From the viewpoint, the sheer power and size of the waterfall are breathtaking, and it offers some excellent photo opportunities.

Practicalities and Tips

Duration and Group Size: The full-day tour lasts about 8 hours, with a small group capped at 6 participants. This limited size can make the experience more intimate and allow for better interaction with your guide.

What to Bring: Pack essentials like a sun hat, swimwear, towel, change of clothes, camera, sunscreen, flip-flops, water shoes, and a flashlight for cave exploration. Remember a waterproof bag for your belongings as the day involves a lot of water.

Physical Considerations: The tour involves moderate activity—steep descents, some bending, and swimming. It’s not suitable for very young children, people with mobility problems, back issues, or claustrophobia.

Cost and Value: While the tour isn’t cheap, it covers a full day packed with diverse natural attractions. Considering transportation, guides, and multiple swimming locations, it offers good value for adventure-seekers wanting an authentic, active Samoa experience.

Authentic Feedback and Insights

The sole review available is glowing: “Einer der besten Ausflüge die wir gemacht haben” (“One of the best trips we’ve done”) from Peter in Germany. He appreciated the day’s variety and highlighted the guide’s quality. Such reviews reinforce that, despite some physical demands, travelers tend to leave with a lasting impression of Samoa’s raw beauty.

What Makes It Special?

Travelers consistently praise the stunning views—from waterfalls to coastal vistas—and the chance to explore hidden cave pools that aren’t on most tourist maps. The combination of swimming, hiking, and exploring lava tunnels means you get a deeper connection to Samoa’s volcanic landscape.

Who Is This Tour Best For?

This adventure works best for active travelers who enjoy outdoor pursuits and aren’t afraid of a bit of physicality. It’s perfect for those seeking authentic natural experiences away from typical tourist spots. If you’re traveling with people who are comfortable with moderate hikes and water activities, you’ll find this trip rewarding.

However, if you have mobility issues, are claustrophobic, or prefer less physically demanding sightseeing, this might not be your best fit. It’s also a good pick for travelers who love scenic views and are eager to learn about Samoa’s geological features.

FAQs

Is this tour suitable for children?
It’s not recommended for children under 6 or 10 due to the physical activity and cave exploration involved. It also requires swimming and bending, which may be difficult for very young or less mobile kids.

Do I need special gear?
You should bring a waterproof bag, water shoes, and a flashlight, which will be provided or recommended by the guide. Wearing comfortable walking shoes and swimwear underneath is advised.

What should I wear for this tour?
Wear swimwear beneath your clothes, bring a sun hat, and pack a change of clothes for after. Prepare for potentially wet conditions, especially in caves.

How long is the tour?
It’s a full-day experience, roughly 8 hours from start to finish, including travel, activities, and breaks.

Is the tour customizable?
The information suggests a set itinerary, but with small groups, guides often adapt slightly based on participants’ needs.

Are the pools safe for swimming?
Yes, but be aware that the cave pools are natural and may have varying depths. Always follow your guide’s instructions for safety.

What’s the main highlight?
Most travelers rave about the lava tube cave exploration and the crystal-clear cave pools, so be prepared for a mix of adventure and natural beauty.

Final Thoughts

If you’re craving an active, visually stunning day that combines Samoa’s volcanic terrain, secret caves, and beautiful waterfalls, this tour checks all those boxes. It’s a solid choice for travelers wanting more than just beach lounging—an immersive experience into the island’s wild and wonderful landscape. Expect a lively day of swimming, exploring, and marveling at Samoa’s natural marvels, all with a small group for a more personal touch.

Keep in mind it’s best suited for those comfortable with some physical activity and cave exploration. If that sounds like you, then buckle up for an unforgettable adventure that will leave you with stories to tell long after you return home.

You can check availability for your dates here: