Roseau is the capital of the Caribbean island nation of Dominica. It's on the southwest coast and known for its 18th-century Creole architecture. Its cobblestone Old Market, formerly a slave auction site, sells crafts and fruit. It’s next to the Dominica Museum, with exhibits on the country’s natural and cultural history. The Dominica Botanic Gardens showcase tropical flora and native Sisserou parrots.
Wikipedia

Dominica is a mountainous Caribbean island nation with natural hot springs and tropical rainforests. Morne Trois Pitons National Park is home to the volcanically heated, steam-covered Boiling Lake. The park also encompasses sulphur vents, the 65m-tall Trafalgar Falls and narrow Titou Gorge. To the west is Dominica?s capital, Roseau, with colorful timber houses and botanic gardens.
Wikipedia