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Published on January 7, 2026

How to Get to To Sua Ocean Trench: A Visitor's Guide

Samoa's To Sua Ocean Trench is an iconic natural wonder, a breathtaking swimming hole carved into volcanic rock and connected to the ocean. Planning your visit to this magnificent site is an essential part of your Samoan adventure, ensuring a smooth and unforgettable experience.

What is To Sua Ocean Trench?

Nestled on the south coast of Upolu,To Sua Ocean Trench, which translates to "Big Hole," is a unique geological formation. It features two large holes, with the more famous one containing a crystal-clear natural swimming pool fed by a lava tube tunnel connecting it directly to the Pacific Ocean. Descending into its turquoise waters via a long, sturdy wooden ladder is an experience unlike any other, offering a refreshing swim surrounded by lush, tropical gardens.

Fun Fact:The ocean trench is believed to have formed from a collapsed lava tube, creating a natural pool that is roughly 30 meters (98 feet) deep. Its connection to the ocean means the water level rises and falls with the tides.

Where is To Sua Ocean Trench Located?

To Sua Ocean Trench is situated in the village of Lotofaga on the southeast coast of Upolu, Samoa's most populous island. It's approximately an hour to an hour and a half drive from Apia, the capital city, depending on traffic and your chosen route. Its location makes it a perfect stop when exploring the scenic southern coastline.

Getting to To Sua Ocean Trench

Visiting To Sua Ocean Trench requires a bit of planning, but several transportation options cater to different preferences and budgets. Remember that road conditions in Samoa can vary, so always drive with caution.

By Rental Car

Renting a car is one of the most popular and flexible ways to reach To Sua Ocean Trench, especially if you plan to explore more of Upolu's stunning attractions. Rental agencies are available in Apia and at Faleolo International Airport.

  1. Driving from Apia:The most common route involves heading east along the Main South Coast Road. This picturesque drive will take you through several villages and past other notable sites.
  2. Directions:From Apia, follow the main coastal road heading east. You'll pass through areas like Luatuanu'u and Fusi. Keep an eye out for road signs indicating "To Sua Ocean Trench" as you approach the village of Lotofaga. The site is well-signposted once you are in the vicinity.
  3. Journey Time:Approximately 60-90 minutes, depending on your starting point in Apia and road conditions.
  4. Parking:There is ample parking available at the To Sua Ocean Trench site, usually overseen by local villagers.

Having your own vehicle allows you to combine your visit with other nearby attractions such as the breathtaking Lalomanu Beach, the serene Falefa Falls, or the unique Piula Cave Pool on the east coast, or even the refreshing Togitogiga Waterfall further west on the south coast.

By Taxi

Taxis are readily available in Apia and can be a convenient option, especially if you prefer not to drive. You can negotiate a fare for a round trip, including waiting time, with your driver.

  • Convenience:A taxi offers a door-to-door service, allowing you to relax and enjoy the scenery without navigating.
  • Local Knowledge:Drivers are usually knowledgeable about the area and can often share insights into Samoan culture.
  • Negotiate:Always agree on the fare beforehand to avoid any misunderstandings.

By Organized Tour

Many tour operators in Samoa offer guided excursions that include To Sua Ocean Trench as a highlight. This is an excellent option for those who prefer a hassle-free experience with transportation, entrance fees, and sometimes even lunch included.

  • Inclusions:Tours often combine To Sua Ocean Trench with other popular Upolu attractions like Lalomanu Beach,Togitogiga Waterfall, or even a scenic drive along Lefaga Bay.
  • Benefits:No need to worry about driving, directions, or parking. You'll also benefit from a local guide's insights.
  • Booking:Tours can be booked through your accommodation, local tour agencies in Apia, or online.

By Local Bus (Fiafia Bus)

For the adventurous and budget-conscious traveler, experiencing Samoa's local bus system is an authentic way to get around. These brightly colored "Fiafia" buses operate from the Fugalei and Savalalo markets in Apia.

  1. Identify Your Bus:Look for buses with "Lotofaga" or "Lalomanu" written on the front or side. These are the routes that pass by To Sua Ocean Trench.
  2. Schedule:Buses don't operate on a strict timetable; they typically depart when full. Services are more frequent during weekdays and less so on weekends.
  3. Journey Time:Expect a longer journey than by car or taxi, potentially 1.5 to 2 hours or more, due to frequent stops.
  4. Drop-off:Inform the driver or conductor you wish to get off at To Sua Ocean Trench. They will usually drop you off at the roadside entrance, from where it's a short walk to the trench itself.
  5. Return Trip:Be mindful of the return bus schedule, especially in the late afternoon, as services become less frequent.

Essential Tips for Visiting To Sua

  • What to Bring:
    • Swimwear and Towel:Absolutely essential for a dip in the trench.
    • Reef Shoes/Water Shoes:The rocks around the trench and in the water can be slippery.
    • Camera:You'll want to capture the stunning beauty.
    • Water:Stay hydrated, especially on a warm day.
    • Sunscreen and Hat:Protect yourself from the strong Samoan sun.
    • Snorkeling Gear:If you want to explore the underwater world.
  • Best Time to Visit:
    • Early Morning (before 10 AM) or Late Afternoon (after 3 PM):To avoid peak crowds and the hottest part of the day.
    • Tide:While the trench is swimmable at most tides, checking local tide times can help you experience it at its calmest or most dynamic.
  • Safety:
    • The Ladder:The main access is via a steep wooden ladder. Take your time, hold on tight, and be mindful of others.
    • Slippery Surfaces:The rocks and pathways can be wet and slippery, so watch your step.
    • Swimming:The water is deep. If you're not a strong swimmer, consider bringing a life vest.
  • Respectful Visiting:
    • Local Customs:Samoa is a deeply religious and communal country. Dress modestly when outside swimming areas, especially when walking through villages.
    • Fa'a Samoa:Respect the Samoan way of life. Always ask permission before taking photos of people.
  • Facilities:There are basic changing rooms, toilets, and sometimes a small fale (traditional house) selling refreshments or souvenirs at the site.

Beyond To Sua: Nearby Attractions

A visit to To Sua Ocean Trench can easily be combined with other spectacular sights on Upolu's south and east coasts:

  • Lalomanu Beach: Often hailed as one of the world's most beautiful beaches, perfect for relaxing after your swim.
  • Togitogiga Waterfall: A popular swimming spot and picnic area within the O le Pupu-Pu'e National Park.
  • Falefa Falls: A picturesque waterfall easily viewed from the roadside.
  • Piula Cave Pool: A freshwater cave pool perfect for a refreshing dip, located within the grounds of a Methodist church.
  • Papapapaitai Falls: A stunning, tall waterfall viewed from an impressive lookout point on the cross-island road.

Conclusion

Getting to To Sua Ocean Trench is part of the adventure, leading you to one of Samoa's most captivating natural wonders. Whether you choose the independence of a rental car, the convenience of a taxi or tour, or the authentic experience of a local bus, the journey culminates in an unforgettable encounter with this magnificent "Big Hole." Prepare well, respect the local environment, and dive into the magic that is To Sua Ocean Trench.