Estádio Hercílio Luz

Opened in 1921, it is the oldest football stadium still in professional use in the state of Santa Catarina. The land was donated by the state of Santa Catarina, specifically through Hercílio Pedro da Luz, the governor at the time, who sanctioned Law 1.352/21 to cede the swampy area to Clube Náutico Marcílio Dias. The club built the stadium itself. The inauguration event, known as the "Festa da Primavera" (Spring Festival), included a football match between Marcílio Dias and Brasil de Tijucas (which Marcílio Dias won 6–1), a basketball court, and an athletics track.

Although there were initial plans to install artificial turf, the club's technical commission requested that the surface remain natural grass to avoid player injuries. A major modernization of the pitch, including new drainage and irrigation systems, was carried out in 2019 at a cost of approximately R$ 600,000. The stadium has undergone various renovations over the decades, including the installation of fencing (1959), covered stands (1961), and night lighting (1964). The current capacity is approximately 6,000 seated spectators, according to the Brazilian Football Confederation's (CBF) National Stadium Registry and Wikipedia.

The official attendance record is 15,000 spectators, estimated for a match on March 7, 2004, between Marcílio Dias and Figueirense, which ended in a 0–5 victory for Figueirense. Notable events include a visit by Brazilian superstar Neymar on June 19, 2011, to watch his adopted brother Joclécio play for Marcílio Dias against Brusque in the Copa Santa Catarina. The stadium also hosted matches involving major national clubs such as Vasco da Gama (in the Copa do Brasil) and Goiás (in the Série B). In October 2021, the stadium celebrated its 100th anniversary, and the club launched a special commemorative jersey. A new architectural project to expand the stadium's capacity to approximately 18,000 seats has been proposed in recent years, with Phase 1 increasing capacity to 12,800 and Phase 2 adding an upper ring. The stadium was municipalized by the city of Itajaí in 2006, but the club continues to use it as its home ground.