Parc national des îles Ehotilé: A Coastal Archipelago and Lagoon Landscape within the Comoé District

The Iles Ehotile were formally constituted as a national park by decree No. 074-179 on 25 April 1974. The designation came at the initiative of local communities, giving the park an unusually strong foundation in local stewardship rather than purely top-down government action.

In 2005, the site gained additional international recognition when it was added to the list of Ramsar Wetlands of International Importance, acknowledging the ecological value of its lagoons, channels, and island habitats. The park has also been included on UNESCO's tentative list of world heritage sites, reflecting the broader cultural and natural significance attributed to the archipelago by both national and international bodies.

The landscape of the park is dominated by water rather than by terrestrial terrain. The Aby lagoon complex and its surrounding channels form a vast estuarine environment where freshwater outflows meet coastal salinity. Within this watery matrix, the six islands of the Ehotile archipelago rise as patches of forest and shoreline vegetation, separated by intricate networks of channels, tidal flats, and mangrove stands.

Five of the islands occupy the strictly estuarine zone near the mouth of the lagoon, creating together a small island delta where sedimentation, tidal flow, and plant colonization shape the land. The island of Bosson Assoun, by contrast, lies in a quieter, more brackish zone further inland, near the boundary between the Ebrie and Tendo lagoon systems. The total land area of the archipelago is modest, but the surrounding lagoon channels, which are themselves part of the protected setting, give the park a broad and visually rich aquatic landscape.

Ecologically, the park sits at the meeting point of estuarine, lagoon, mangrove, and lowland forest environments. The result is a mosaic of habitats unusually compressed into a small geographic footprint. Mangroves fringe much of the shoreline, while the interior of the islands retains patches of forest that connect ecologically to the broader Ivorian coastal forest landscape. The brackish and saline gradients between the estuary and the inner lagoon create localized differences in salinity, vegetation, and wildlife use.

This combination of habitats makes the archipelago disproportionately important for biodiversity relative to its size. Aquatic and semi-aquatic species find refuge across the various lagoon zones, forest interiors provide roosting and nesting habitat, and the transition between freshwater, brackish, and marine influences sustains a complex trophic web that supports both resident and migratory fauna.

Birdlife is one of the park's most visible wildlife features. Around 128 bird species have been recorded across roughly 35 families, dominated by aquatic species that depend on the lagoon and estuarine habitats. In the dry season, the islands receive additional migratory species, increasing the ornithological interest of the site on a seasonal basis.

The park also shelters terrestrial mammals typical of West African coastal forests, notably duikers and bushpigs, which retain a presence on the islands despite their proximity to human settlement. Two fauna stand out as particularly标志性 of the site: a notable colony of straw-coloured fruit bats (Roussettes des palmiers) that roosts on Balouate island, and the presence of the West African manatee in the surrounding lagoon waters. The manatee, in particular, is regarded as a representative species of Ivorian lagoons and is considered threatened, lending the park a particular conservation significance for aquatic mammals.

The park's conservation profile rests on its wetland character and the international recognition attached to it. Designated a national park in 1974, it received Ramsar Wetland status in 2005, formally placing it among internationally important wetland sites. Its broader inclusion within the Aby lagoon system adds to its conservation weight, since lagoons in this region are increasingly under pressure from coastal development, fishing pressure, and habitat change.

The archipelago's biodiversity value is unusually concentrated for its size: mangrove, estuarine, and island forest habitats co-exist within a small area, supporting vulnerable species such as the manatee and large bat colonies. The park therefore matters not only as a local protected area but also as a refuge for lagoon and estuarine species whose habitats have been shrinking elsewhere along the Ivorian coast.

The park is closely bound up with the identity of local communities, particularly the Ehotile and, to a lesser extent, the Essouma peoples, both of whom claim cultural paternity over the islands. The surrounding riverside population is organized around 21 villages and is officially estimated at around 32,000 inhabitants, representing a significant share of the department's total population. Fishing is the dominant economic activity, reflecting the deep relationship between local livelihoods and the lagoon.

Several of the islands carry strong spiritual meaning. Bosson Assoun is regarded as a sacred island, while the straw-coloured fruit bat colony on Balouate is interpreted by local communities as a symbolic presence of deceased relatives. The chief town of the Ehotile canton is Etueboue, while the Essouma chiefdom is based in Assinie, and the park thus sits within a layered political and cultural landscape as well as a natural one.

The defining highlights of the park are its six-island archipelago architecture, its estuarine lagoon setting within the Aby system, and the unusually rich mix of mangrove, forest, and aquatic habitats that the islands sustain. The presence of both Ramsar recognition and a UNESCO tentative listing signals that the park is regarded as significant well beyond Cote d'Ivoire's borders.

Distinctive highlights include the five-island estuarine cluster forming a lagoon delta near the mouth of the Aby complex, the sacred Bosson Assoun island in the inner lagoon, the diverse birdlife with both resident aquatic species and dry-season migrants, and the two especially characteristic animal groups: the straw-coloured fruit bats of Balouate and the lagoon-dwelling manatee.

Given the park's combination of lagoon, estuarine, and island forest habitats, the timing of a visit shapes both the experience and the wildlife opportunities. The dry season is particularly relevant for birdwatching, as migratory species join the resident aquatic birds around the islands and the lagoon waters. This period also tends to offer calmer conditions for exploring the archipelago and its channels.

During wetter periods, water levels rise and the lagoon system expands, intensifying the sense of an amphibious landscape; however, access conditions may also become more challenging. Travellers interested in bird diversity, lagoon scenery, and the cultural rhythm of riverside villages will generally find the drier months the most rewarding window for engaging with the park.