Lac Rose, also known as Lake Retba, is a saltwater lake located in Senegal, near the Atlantic Ocean. It is famous for its striking pink color, which is caused by the presence of Dunaliella salina, a type of algae that thrives in high-salinity environments. The lake is a popular tourist destination, attracting visitors who come to see its unique hue and enjoy the surrounding scenery. The lake's high salt concentration allows for easy buoyancy, making it possible for people to float effortlessly. Local communities harvest salt from the lake, which is an important economic activity in the region. Lac Rose is also known for its beautiful sunsets and diverse birdlife, making it a significant ecological site.