Saint-Trojan-les-Bains is a charming seaside resort located on the southern tip of the Île d'Oléron, known for its extensive sandy beaches and pine forests.

Historically, the area was sparsely populated and primarily focused on salt production, fishing, and agriculture until the development of tourism in the late 19th century.

The construction of the narrow-gauge railway, called the "Petit Train de Saint-Trojan," in the late 19th century significantly boosted tourism, providing easy access to the beaches and forests.

Saint-Trojan-les-Bains experiences an oceanic climate with mild winters and warm summers, making it an attractive destination for year-round tourism.

The demographic profile of Saint-Trojan-les-Bains is characterized by a significant increase in population during the summer months due to tourism, contrasting with a smaller permanent resident population.

Economically, the town relies heavily on tourism, with numerous hotels, campsites, restaurants, and shops catering to the seasonal influx of visitors.

Oyster farming is a significant local industry, contributing to the region's culinary identity and economy alongside tourism.

The architecture in Saint-Trojan-les-Bains reflects its history as a developing resort town, with a mix of Belle Époque villas, traditional Charentais houses, and modern holiday accommodations.

The iconic Saint-Trojan lighthouse, although situated in the nearby commune of Le Grand-Village-Plage, is a recognizable landmark visible from Saint-Trojan, guiding maritime traffic in the Pertuis de Maumusson.

Saint-Trojan-les-Bains participates in various maritime festivals and events throughout the year, celebrating its connection to the sea and its maritime heritage.

The commune's extensive pine forests provide opportunities for hiking, cycling, and nature observation, contributing to its appeal for eco-tourism.

During World War II, the Île d'Oléron, including Saint-Trojan-les-Bains, was occupied by German forces, leaving behind remnants of bunkers and fortifications along the coastline.

Although not a UNESCO site itself, the Île d'Oléron, including Saint-Trojan-les-Bains, is located within a broader region known for its rich maritime history and cultural heritage.

The population has experienced a gradual increase over the past few decades, spurred by its attractiveness as a retirement destination and a place for second homes.

Local traditions include regional cuisine featuring fresh seafood, particularly oysters and mussels, and celebrations related to the maritime calendar, such as fishermen's festivals.