Directions to Martha's Guesthouse

From Barcelona's airport:
At the exit of each terminal you should take the the AEROBUS.
Get off at PLAZA ESPAÑA.
Take the metro, green line direction TRINITAT NOVA.
Get off at a station named DRASSANES (three stations).
Locate yourself in LAS RAMBLAS with your back towards the sea.
On your left look for a big building and a parking called ATARAZANES.
Take the street on the right of the parking. The name of the street is MONTSERRAT.
Take it for 50 meters.
On your left you will find a street called ARC DEL TEATRE.
Look for number 18.
Ring on 3-1