Guarapari is a coastal town of Espírito Santo, Brazil, a popular tourist destination. Its beach is famous for the high natural radioactivity level of its sand.
Guarapari is a part of Greater Vitoria, 47 km south of the state capital Vitória. Its population is 126,701 (2020) and its area is 592 km².
It is a well-known tourist destination, known for its curving white sand beaches backed by commercial development, which extend southward to Nova Guarapari and Meaípe. With its heavily built-up coastline like Vila Velha and Vitória, it caters heavily to seasonal tourists, and consequently has quite a dramatic seasonal population fluctuation.
The municipality contains the 953 hectares (2,350 acres) Concha d'Ostra Sustainable Development Reserve, established in 2003 to protect the mangroves of the Bay of Guarapari. It also contains the 1,500 hectares (3,700 acres) Paulo César Vinha State Park, which protects an area of dunes, lagoons and marshes along the Atlantic shore. Formerly called the Setiba nature reserve, it is a pristine example of a coastal ecosystem and important for local turtle and bird populations.