In 1590, the Spaniards fortified "Cavite Nuevo" with a "muralla" (high thick curtain walls) on its western, northern and eastern side while the side fronting Baccor Bay remained open. Fort Guadalupe on the easternmost tip was also built at the same time, and the town became the "Puerto de Cavite" (Port of Cavite) or "Cavite Puerto". The Fort of San Felipe Neri and Porta Vaga gate were constructed in 1595 and completed in 1602. Puerta Vaga (corrupted to Porta Vaga) was the port city's barbican western and only principal entrance from San Roque. It was flanked by the western wall protected by two bastions at its north and southern end. The wall and gate were also separated from the mainland by a moat, which also made the town like an island.