The cache place is too much crowded, the right moment to
search the geocache is at the morning, until 10 o' clock.
"Les Rambles" is a central sidewalk and goes from "Plaça
Catalunya" (the center of Barcelona) where you can arrive by train
(RENFE or FFCC) to the Colon statue (about 2 km). Several Metro
underground stations are located in "Les Rambles".
This central sidewalk is well-know thanks to the kiosks, flowers
and pets shops and human sculptures.
If you have not been here you have not seen Barcelona at
all.