Trimbakeshwar is a perfect weekend gateway from Mumbai. One can spend some days in Nashik also. Shirdi, Shani shingnapur, Trimbakeshwar can also be a perfect itinerary.
Nearest railway head: Nashik road.
By road: Mumbai to Nashik approx 170km, Nashik to Trimbakeshwar: 30km.Shirdi to Nashik: approx 90km.
Happy travelling !!!!