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Vestiges de Guisanbourg
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The Vestiges of Guisanbourg are the ruins of a once-flourishing colonial town located on the banks of the Approuague River. Founded in 1677 by the Swiss engineer Jean Guisan, the town grew during the 18th and early 19th centuries into a vital economic hub for sugarcane, cocoa, and coffee production. Guisan introduced innovative polder systems that allowed the fertile marshlands to be drained and cultivated, making Guisanbourg at one point the second most important settlement in the colony after Cayenne. The town featured a grand church, administrative buildings, and numerous plantation estates. However, its decline began with the abolition of slavery in 1848, leading to a labor shortage, and was accelerated by the gold rush further upriver, which drew the population away. Eventually, the town was abandoned and reclaimed by the jungle. Today, visitors can see the haunting remains of the Saint-Jean-Baptiste church and the foundations of the old plantations, which stand as silent witnesses to a bygone era of colonial prosperity and hardship.
- Location: French Guiana
- Top sights: Montagne des Rochers · Guisanbourg
- Nearby: Kaw Marshes (19 km)
Best time to visit & climate
The most pleasant time to visit is Aug–Oct.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 28 | 28 | 27 |
| Rain mm | 309 | 285 | 278 | 379 | 468 | 304 | 200 | 96 | 45 | 51 | 101 | 292 |
📋 Practical info
Visiting
The remains of Guisanbourg are the ruins of an abandoned sugar plantation town, viewable from the outside. The ruins are freely accessible, but entering the buildings is not possible.
Typical hours
The site is publicly accessible at any time as it is an open area. However, it's recommended to visit in daylight as the ruins are hard to see in the dark.
Photography
Photography is allowed throughout the site. The decaying buildings and surrounding vegetation offer impressive subjects for atmospheric shots.
Time needed
A walk around the site takes about 30-45 minutes. If interested in the plantation history, allow an hour.
Combine with
Guisanbourg is near Kourou, so a visit can be combined with a trip to the space center. Kourou beach is also not far.
Getting there
The ruins are reachable by car via RN2, turning at Besoin. Part of the road is unpaved; a normal car is fine in dry weather.
Insider tip
Visit the site early morning to enjoy the soft light and quiet. Watch out for scattered debris and wear sturdy shoes.
Geography
Facts
- Founded in 1677, Guisanbourg was a major center for colonial agriculture.
- The polder system used here was unique in South American colonial towns.
- The Saint-Jean-Baptiste church is the most prominent ruin on the site.
- The town's peak population reached several thousand before 1848.
- Gold mining in the Approuague basin contributed to its abandonment.
- Access to the ruins is restricted to river transport via pirogues.
Explore nearby
Notable places around
Route planner — Car & Motorhome
Where do you start? We build the route here, with stops and country notes along the way.
Vehicle
Only stops with (optional):
© OpenStreetMap contributors · OpenRouteService
Sights in the town Vestiges de Guisanbourg (2)
Sights nearby
Frequently asked questions
What was Guisanbourg?
It was a once-prosperous settlement and commune that was abandoned in the 19th century due to economic decline.
What can be seen there today?
You can see the remains of the church and some houses, which are now almost completely overgrown by the jungle.
How do you get to the ruins?
Access is usually by boat via the Approuague River, followed by a trek through the forest.
Why was the town abandoned?
After the abolition of slavery and the end of cocoa production, the inhabitants left the site.
Is a guide necessary?
Yes, due to the remote location and the risk of getting lost in the forest, a local guide is highly recommended.
Vestiges de Guisanbourg: where is it located?
Vestiges de Guisanbourg is located in French Guiana.
Vestiges de Guisanbourg: what is there to see?
Highlights include Montagne des Rochers, Guisanbourg.
Vestiges de Guisanbourg: when is the best time to visit?
The most pleasant time to visit is Aug, Oct.
Vestiges de Guisanbourg: why is it worth visiting?
The Vestiges of Guisanbourg are the ruins of a once-flourishing colonial town located on the banks of the Approuague River.
Explore with Plizio
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Oyapock River Bridge
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Stade Georges-Chaumet
The largest multi-purpose stadium in Cayenne, regularly used for major football matches and athletics events.
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Cayenne City Hall
The beautiful administrative building of the city of Cayenne, designed in a classical colonial style with striking yellow facades.
Prefecture of French Guiana
The official seat of the prefect and an outstanding example of French colonial administration in the Caribbean and South America.
Victor Schœlcher Statue
A significant monument to Victor Schœlcher, who played a crucial role in abolishing slavery in the French colonies.
Saint-Sauveur Cathedral
The main church of Cayenne, built in colonial style, is a notable historical monument in the center of the capital.
Cayenne Central Market
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Félix Éboué House
The historical birthplace of famous politician Félix Éboué, which today is a small museum about Guiana's history.
Nature
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Extensive jungle areas in the east of French Guiana around the municipality of Régina.
Regina Vanilla Plantation
A sustainable plantation near Regina that cultivates natural vanilla deep in the forest, one of the region's most valuable crops.
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Kaw Mountain
Kaw Mountain is part of a large nature reserve and is known for its wetlands.
Savane Roche Virginie
A spectacular granite inselberg protruding from the forest canopy.
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Trésor Nature Reserve
A regional nature reserve offering a rich tropical forest ecosystem with an educational trail for school groups.
Montagne d'Argent
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Roura Logging Enterprise
A center for controlled logging and processing, exporting valuable woods like Angelique from the municipality's extensive forests.
Îlet la Mère Monkey Island
A small offshore island known for its free-roaming squirrel monkeys that often greet visitors.