It's a nice trek along the railway lines if u love trekking try going by train and if u don't want to be tired and all sweaty when u reach tha falls try booking a gypsy...but I would recommend a trek
It's one of the coolest place to Visit near Goa, You can hire a SUV to go there as it was a bumpy ride and they will drop you at certain point, From where you have to trek atleast one and half km for Doodh Sagar Waterfall..........