during the first years of existence, the branch carried an average of 100,000 passenger (on weekends) due to it had been conceived as a tourist train, with maipú, libertador and san isidro as its main commercial centres. beside delta terminus, a new amusement park, "parque de la costa" was built, self-proclaiming "the largest in south america". parque de la costa -opened in april 1997- invested us$100 million to be constructed. two years later, the "trillenium casino" opened beside the park and delta station. scp and grupo bolt invested a$ 70 million. the new gamble center had 1,800 slots machines, 76 game table and 2 electronic roulettes.