Address: Subida Artillería 470, Valparaíso, Chile.
Website of the Institute
The school is located next to the "Museo Maritimo nacional". You can follow the instructions online to get there
https://museomaritimo.cl/como-llegar-2/
Note that the cable car (ascensor) going from "Plaza Aduana" to "Paseo 21 de Mayo" is not working at this moment.