Bunce Island

Island British slave-trade fort ruins on Sierra Leone island

An island in the Sierra Leone River with ruins of an 18th‑century British slave‑trading fort; visitors study the archaeology and the transatlantic slave trade on guided tours from Freetown.

Main image
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Bunce Island Beach.jpg
Bunce Island Fortress Cannon.jpg
Bunce Island Fortress Wall 01.jpg
Bunce Island Fortress Wall 02.jpg
Bunce Island Fortress Wall 03.jpg
Bunce Island Fortress Wall with Branches.jpg
Bunce Island Gravestone 01.jpg
Bunce Island Gravestone 02.jpg

Bunce Island is an island in the Sierra Leone River estuary that contains the ruins of a British slave fort and trading complex dating to the 17th and 18th centuries. It was an important site in the transatlantic slave trade.

The site was developed by British trading interests from the late 1600s and expanded through the 18th century as part of the Atlantic slave trade network. Operations declined after the British abolition of the slave trade and the island was abandoned; the remaining structures now stand in ruin.

Situated in the estuary of the Sierra Leone River upstream from the city of Freetown, the island sits within the broader river and coastal landscape and is accessed by small boat.

  • Historical significance: Built as a fortified trading post by British interests in the late 17th and 18th centuries, it was a major embarkation point in the Atlantic slave trade to the Americas.
  • Access: Access is by boat from the Sierra Leone coast; visits are generally short and require a local guide or boat operator familiar with the estuary.

What to See #

  • Castle ruins: Ruined fortifications, walls and foundations of the British-built slave castle and associated structures remain on the island and can be seen at low tide exposures and from boats.
Bunce Island
Bunce Island, Sierra Leone River estuary, near Freetown
8.5698, -13.0407

How to Get to Bunce Island #

Bunce Island is accessible only by boat from Freetown. Day trips and private motorboats depart the Freetown waterfront/jetty area and cross the Sierra Leone River to the island; once ashore there is a short walk around the ruined site. Arrange transport from Freetown’s docks (taxi to the jetty) to join a guided boat trip.

Tips for Visiting Bunce Island #

  • Visit Bunce Island as part of an organized tour from Freetown so you arrive by a knowledgeable boat operator and guide who can interpret the fort's history; independent landings are logistically more difficult.
  • Plan the trip for the morning to take advantage of calmer seas and to ensure time to explore the ruins before any afternoon wind or chop makes the return crossing uncomfortable.
  • Check with your tour operator about tide and landing conditions and be prepared for the possibility of last‑minute cancellations in bad weather - confirm transport the day before.

Best Time to Visit Bunce Island #

Go in the dry season (November-April) when boat crossings from Freetown are most reliable and on-site visits are more comfortable.

Dry season (best time)
November-April · 24-30°C (coastal)
Drier weather and calmer sea conditions make the historic site easier to reach by boat and more pleasant to explore.
Wet season
May-October · 24-29°C
Heavy rains and rougher waters can interrupt boat services; site visits may be damp and muddy.

Weather & Climate near Bunce Island #

Climate
Temperature & Rainfall
Temperature Range
37°
Warmest Month
16°
Coldest Month
Monthly Conditions

January

Weather

1.7
UV Index
Very High
11.6h daylight

February

Weather

2.0
UV Index
Extreme
11.7h daylight

March

Weather

2.2
UV Index
Extreme
12.0h daylight

April

Weather

2.2
UV Index
Extreme
12.2h daylight

May

Weather

2.1
UV Index
Extreme
12.4h daylight

June

Weather

1.7
UV Index
Very High
12.5h daylight

July

Weather

1.6
UV Index
Very High
12.4h daylight

August

Weather

1.7
UV Index
Very High
12.3h daylight

September

Weather

1.9
UV Index
Very High
12.1h daylight

October

Weather

2.0
UV Index
Very High
11.8h daylight

November

Weather

1.8
UV Index
Very High
11.6h daylight

December

Weather

1.7
UV Index
Very High
11.5h daylight

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