How to Plan a Trip to Aunu'u Island

Aunu’u Island is one of American Samoa’s best-kept secrets, just a short boat ride from Tutuila, yet it feels like a world away.

Known for its lush taro plantations, volcanic features, and living traditions, Aunu’u offers a mix of natural beauty and cultural richness that few places can match.

Visit just for the day and follow the tips in this complete travel guide to Aunu'u Island, which includes how to get there, things to do and day tours.

Frequently Asked Questions About Aunu'u Island

We’re here to tell you everything you need to know about Aunu’u in American Samoa, so we won’t waste any time in this Aunu’u travel guide giving you the answers to the questions that most travellers have about visiting.

Where is Aunu'u Located?

Aunu’u is a small volcanic island located just off the southeast coast of Tutuila, the main island of American Samoa. It sits less than 1 km (0.6 mi) across the Auasi Channel, making it an easy and popular day trip destination. Learn more about the location of American Samoa in our guide, Where is American Samoa Located?

Can You Visit Aunu’u Island?

There are a few ways to visit the island between tours, guided day trips or simply taking an alia boat from Auasi Village on Tutuila. We go into details on how to visit Aunu'u Island in the guide below.

What is Aunu’u Known For?

Aunu’u is known for its rich cultural traditions and natural landmarks. The island is famous for producing some of the best taro in American Samoa, as well as unique features like a quicksand pool, a volcanic crater, and dramatic sea cliffs such as Sina Cliff and Tigilau Cliff, tied to well-known Samoan legends.

What is the Population of Aunu’u?

The population of Aunu’u is estimated at around 500 residents. The community is close-knit, and much of life revolves around farming, fishing and cultural practices passed down through generations.

How Big is Aunu’u?

Aunu’u is relatively small, covering just 1.5 km² (0.6 mi²).

Aunu'u Island CREDIT AmericanSamoaPocketGuide.com 1
© AmericanSamoaPocketGuide.com

How to Get to Aunu’u

Aunu’u is just a short hop across the Auasi Channel from Tutuila, making it one of the easiest islands to visit in American Samoa. The journey takes around 10-15 minutes by alia boat (small passenger ferry) departing from ‘Au’asi Harbor, located on the east side of Tutuila about a 35-minute drive from Pago Pago. With boats running on demand, getting there is wonderfully straightforward.

Boat Transfer to Aunu'u Island

The most popular and affordable way to get to Aunu’u is by taking an alia boat from ‘Au’asi Harbor. The harbor is easy to spot along the main road, and there’s a sheltered fale (open-sided hut) where you can wait comfortably before departure.

Boats operate without a set schedule, simply show up and check in with the skipper or locals on site.

The ride across the channel is quick, but as with all small-boat journeys, sea conditions can vary, so it’s best to come prepared. Fares are typically US$5–$10 one way, with children half price. Payment is cash only.

When you’re ready to return to Tutuila, head back to Aunu’u Harbor. You can either arrange a pickup time with your skipper in advance, or simply wait at the harbor, locals will usually call the boat for you. The community is close-knit, and everyone looks out for visitors, so you won’t be left stranded.

Day Trips to Aunu'u Island

For a hassle-free experience, consider booking a guided tour like the "Aunu’u Island Tour" with Samriel Island Getaway. These tours include all boat transfers, walking tours of the island’s taro plantations, visits to cliffs and crater sites, traditional cooking demonstrations, and cultural activities, making it one of the most rewarding ways to see Aunu’u in a single day.

Aunu'u Auasi Harbour CREDIT AmericanSamoaPocketGuide.com
© AmericanSamoaPocketGuide.com

Things to do on Aunu'u Island

Aunuʻu Island may be small, but it’s packed with natural wonders, cultural heritage and unique geological features that you won’t find anywhere else in American Samoa.

Most experiences can be enjoyed on foot, with scenic trails and local tours providing authentic insights into daily island life.

10 Best Things to Do on Aunuʻu Island

  1. Walk through Aunuʻu’s lush taro plantations
  2. Explore Faimulivai Marsh, American Samoa’s largest wetland
  3. Discover the mysterious quicksand area
  4. See the dramatic Sina and Tigilau cliffs beside a crater lake
  5. Join a cultural tour with local cooking demonstrations
  6. Learn about traditional rainwater catchment and water wells
  7. Snorkel along Aunuʻu’s shoreline
  8. Taste the island’s famous taro dish, fa’ausi
  9. Listen to stories of Polynesian settlers and early missionaries
  10. Enjoy the peaceful boat ride to and from ‘Au‘asi

1. Walk Through Aunu'u's Lush Taro Plantations

Aunuʻu is renowned for producing the finest taro in American Samoa, thanks to its fertile volcanic soils. Walking through these plantations is more than a scenic stroll, it’s a chance to learn why the island’s taro is so prized and how it plays an important role in Samoan culture and cuisine.

2. Explore Faimulivai Marsh

Designated a National Natural Landmark in 1972, this freshwater wetland is home to rare flora and fauna, including the Purple Swamphen and the only site in American Samoa with Chinese water chestnut. Keep an eye out for birdlife and enjoy the peaceful atmosphere of the island’s largest wetland.

3. Discover the Quicksand Area

Locals will tell you about Aunuʻu’s “quicksand.” While it’s technically soft mud rather than true quicksand, it’s still fascinating and worth being careful around. Guided tours often include this spot, where you’ll hear stories about its place in local lore.

4. See the Sina and Tigilau Cliffs

Rising dramatically beside a crater lake, these striking cliffs are tied to Samoan legend and offer some of the island’s best views. They’re a reminder of Aunuʻu’s volcanic origins and a highlight of any walking tour.

5. Join a Cultural Tour

A guided tour with a local like Kai Pika of Samriel Island Getaway offers a truly authentic perspective. From cooking demonstrations using wetland taro to hands-on cultural activities, you’ll gain insight into Aunuʻu’s heritage and traditions that go far beyond sightseeing.

6. Learn About Traditional Water Systems

Also part of the tour, as mentioned above, you’ll also visit one of the only two places in American Samoa where it’s still possible to draw water with a bucket from functioning traditional wells. Your guide will also explain the island’s rainwater catchment systems, showcasing how communities continue to adapt to island life.

7. Snorkel Along the Shores

Bring your snorkel gear to discover the underwater life around Aunuʻu. While less commercial than Tutuila’s snorkel spots, the island’s shoreline offers colorful fish and coral in a peaceful setting.

8. Taste the Famous Fa’ausi

No trip to Aunuʻu is complete without trying fa’ausi, a beloved Samoan dish made from the island’s signature taro. The combination of taro and sweet coconut sauce is a true taste of the island’s culinary heritage.

9. Hear Stories of the Past

History lovers will appreciate learning about Aunuʻu’s role in Polynesian migration and the arrival of the first Mormon missionaries in 1863. Local guides often share legends and tales that bring the island’s history to life.

10. Enjoy the Boat Ride to Aunuʻu

The experience begins and ends with the beautiful alia boat ride from ‘Au‘asi village. The journey itself is part of the adventure, offering coastal views and a glimpse into daily life as locals travel between Tutuila and Aunuʻu.

Aunu'u Island CREDIT AmericanSamoaPocketGuide.com
© AmericanSamoaPocketGuide.com

Day Tours to Aunu'u Island

If you’re short on time or simply want a hassle-free way to experience Aunuʻu, joining a guided day tour is the perfect choice. Local operators handle the boat transfers, logistics and storytelling, so you can focus on soaking up the island’s natural and cultural highlights.

Samriel Aunuʻu Island Getaway

Samriel’s signature “Aunuʻu Island Tour” combines history, culture and adventure into one unforgettable day. Your journey begins with transfers to ʻAuʻasi Harbor, where you’ll hop aboard the alia boat for the short ride to Aunuʻu.

From there, a local guide leads you through the island’s famous taro plantations, renowned for producing the finest taro in the Samoan islands while sharing the stories behind this treasured crop.

Highlights of the tour include exploring the quicksand area, admiring the dramatic Sina and Tigilau cliffs, and learning about the island’s unique water wells and catchment systems. Cultural experiences round out the day, with traditional cooking demonstrations and a hearty island-style meal offering a true taste of Samoan hospitality.

More About Aunu'u Island

That's it for our guide to Aunu'u Island; for more information about American Samoa, check out the following articles:

Finally, if there's anything we've missed, you're likely to find it in our Complete Travel Guide to American Samoa LINK#TT038.