If you’re craving a day of outdoor discovery, this Cave Pools and Lava Tube Swims tour in Samoa’s Upolu island offers an excellent mix of adventure, scenery, and cultural highlights. Although I haven’t personally taken this exact trip, multiple reviews and detailed itineraries suggest it’s a genuinely memorable experience for those with a moderate fitness level and a sense of curiosity.
What makes this tour stand out? First, there’s the chance to swim in three different cave and waterhole environments, each with its own unique charm. Second, the guide’s enthusiasm and local knowledge shine through, making the journey not just exciting but educational.
A potential consideration? The day involves quite a bit of walking, steep descents, and water-based activities, so it’s best suited for active travelers comfortable with some physical exertion. It’s perfect for those who want more than just a sightseeing bus tour but don’t want the extreme of technical cave-diving.
This experience suits adventure-seekers, nature lovers, and curious travelers eager to explore Samoa’s lesser-known natural treasures with a knowledgeable guide leading the way.
Key Points

– Unique Water Experiences: Swimming in freshwater and saltwater cave pools offers a one-of-a-kind thrill.
– Cultural Insights: The guide engages with local customs, adding depth to the journey.
– Scenic Roadside Stop: Papapapaitai Falls provides a stunning view and photo opportunity.
– Active Day: Expect some steep descents and jungle hikes, suited for moderate fitness levels.
– Small Group Feel: The tour is private, ensuring personalized attention and fewer crowds.
– Value for Money: All entrance fees, transportation, and lunch are included, making it a convenient package.
– Comfortable Transport: Air-conditioned vehicle offers a welcome break from outdoor heat.
– Authentic Experience: Interactions with local guides and visits to significant sites give honest insight into Samoa.
An In-Depth Look at What This Tour Offers

You can also read our reviews of more tours and experiences in Upolu.
Introduction to Samoa’s Natural Wonders
This tour offers more than just sightseeing; it’s an active exploration of Samoa’s most iconic cave and waterhole sites. For travelers wanting to get beyond the typical postcard shots, these stops reveal some of the island’s hidden gems that few visitors see. The combination of fresh and saltwater swims, jungle hikes, and waterfalls creates a well-rounded taste of Samoa’s natural beauty and cultural richness.
The Itinerary Breakdown
Stop 1: Piula Cave Pool
The day begins around 8:40 am at the Piula Cave Pool, located just meters from the ocean and sitting beneath a historic church. This freshwater spring pool might seem modest, but it offers a surprisingly beautiful and peaceful setting. The highlight here is swimming approximately 25 meters into the cave and sitting on a natural ledge at the end. Natural light filters through the water, making it a perfect spot for underwater photos or simply soaking in the calm atmosphere.
The fact that the admission ticket is included makes this a straightforward start—no extra costs or hassle. Visitors commonly comment on how refreshing and peaceful this first stop feels, setting a relaxing tone for the adventure ahead.
Stop 2: To Sua Ocean Trench
Next, around 10:00 am, the tour takes you to the most famous site in Samoa: the To Sua Ocean Trench. Known worldwide for its dramatic appearance, this giant natural swimming hole is reached by a steep descent. Once at the bottom, you can swim through a 30-meter tidal tunnel to reach the second, smaller trench.
The vivid green cliffs surrounding the trench, coupled with the chance to float in tidal waters, make this a highlight. As it’s arguably Samoa’s most recognized destination, the site can be busy, but the admission fee is included, and the experience of navigating the steep descent and tunnel makes it worthwhile. Travelers have described it as “brave the steep descent,” but also “absolutely worth it.”
Stop 3: Tafa Tafa Beach
Midday, around 12:00 pm, is set aside for a relaxing lunch break at Tafa Tafa Beach. Here, you’ll enjoy a focaccia tuna sandwich roll, in-season fruit, and snacks. It’s a chance to recharge and engage with local customs — the guide may introduce you to the chief, adding a bit of cultural context. The peaceful beach setting offers a perfect spot to unwind after the morning’s active stops.
Stop 4: Vaiula Cave Pool
The afternoon begins with a short jungle hike to Vaiula Cave Pool, which is an exciting journey through a 150-meter lava tube. Descending into the cave, you encounter some beautiful horizontal rock formations and a tranquil swimming environment. The cave’s natural formation provides a cool, shaded break from outdoor exposure, and the free admission adds to the value.
Reviews highlight how fascinating this lava tube experience is, describing it as a “short hike through the jungle” leading into a hidden cave with clear water—perfect for a dip and a photo or two.
Stop 5: Papapapaitai Falls
Near the end of the day, a quick roadside stop at Papapapaitai Falls offers a breathtaking 110-meter waterfall view. It’s a five-minute stop, but one that leaves a lasting impression—an excellent photo backdrop and a reminder of the island’s raw power.
Return to Apia
By 3:00 pm, after approximately three hours’ drive, the tour concludes back in Apia. The relaxed pace allows for some reflection on the day’s highlights, and many travelers report feeling both physically tired and mentally invigorated.
What Makes This Tour Special?
The real appeal lies in the combination of active adventures and culture. Swimming in cave pools and lava tubes isn’t just about the thrill—it’s about experiencing Samoa’s geological history firsthand. The guide’s local knowledge enhances each stop, explaining how these sites fit into the island’s natural landscape and local traditions.
The small, private group setting means you get personalized attention, making it easier to ask questions, adapt the pace, or just enjoy the journey without feeling rushed. The all-inclusive price simplifies planning—no surprises or hidden costs—allowing you to focus on the experience itself.
The Value of the Experience
At $149 per person, this tour offers excellent value, considering all the entrance fees, lunch, transportation, and guide services included. You get a full 7 hours of active exploration, scenic beauty, and cultural insights—all within a manageable itinerary that balances adventure with relaxation.
Practical Considerations
While most of the activities are accessible for travelers with moderate fitness, be prepared for some steep descents and jungle hikes. Wear sturdy shoes, bring your swimsuit and towel, and be ready for some getting wet and muddy. The tour is scheduled to start at 8:00 am, so arriving on time is key to fitting in all the stops comfortably.
Who Should Consider This Tour?

This adventure is ideal for active travelers, nature enthusiasts, and those interested in authentic cultural interactions. It’s perfect for families with older children, couples looking for a memorable day, or solo travelers seeking engaging outdoor experiences. If you enjoy a mix of swimming, hiking, and scenic beauty, you’ll find this tour offers a comprehensive taste of Samoa’s natural charme.
Final Thoughts: Is It Worth It?

For anyone eager to explore Samoa’s less-trodden natural sites while engaging in some fun water activities, this tour offers a fantastic blend of adventure and cultural insight. The guide’s enthusiasm and local knowledge elevate the experience, making it more than just a sightseeing trip. The inclusion of lunch, entrance fees, and private transport adds to the convenience and value, making it a hassle-free choice.
The main draw—swimming in cave pools and lava tubes—is genuinely special and not something many other destinations offer with such ease and safety. Plus, the scenic waterfall stop caps off the day with a beautiful visual reminder of Samoa’s lush environment.
This tour fits best for adventurous, active travelers who want an authentic, hands-on experience while enjoying Samoa’s natural beauty in a safe and guided setting.
FAQ

Is transportation provided?
Yes, private air-conditioned transportation is included, making it easy to relax between stops and focus on the scenery.
How long is the tour?
It lasts roughly 7 hours, starting at 8:00 am and returning around 3:00 pm, with about 3 hours of driving time.
Are the activities suitable for children?
The tour is designed for travelers with moderate physical fitness. Kids comfortable with some walking and water activities should be fine, but check your family’s comfort with steep descents and hikes.
What should I bring?
Bring a swimsuit, towel, comfortable shoes for hiking, sun protection, and a camera. Snacks and water are provided, but extra water or personal snacks are optional.
Are all entrance fees included?
Yes, all site entrance fees are included, which makes planning easier and costs predictable.
Is the tour private?
Yes, it’s a private tour, so only your group will participate, ensuring personalized attention.
Can I cancel the tour?
Yes, free cancellation is available up to 24 hours before the start time, allowing flexibility if plans change.
What’s the best time to take this tour?
The tour starts in the morning, which helps avoid the later day heat and crowds at popular sites like To Sua.
Do I need to be an experienced swimmer?
No, but comfort in water is recommended since swimming in cave pools and tidal tunnels is part of the fun.
This Cave Pools and Lava Tube Swims in Upolu tour offers a lively, hands-on way to enjoy Samoa’s stunning landscapes. It’s perfect for travelers who want to get their feet wet—literally—and experience the island’s geological diversity up close. With knowledgeable guides, all-including pricing, and a balanced itinerary, it delivers a memorable day packed with adventure, scenic beauty, and cultural touches.
Whether you’re a solo traveler eager for a story to tell, a couple seeking a unique experience, or a family ready for some outdoor fun, this tour promises a genuine taste of Samoa’s natural charm. Just come prepared for some physical activity—your reward is some of the most unusual and beautiful sites Samoa has to offer.
