One of the participants is Thomas Kakareko from Berlin, Germany, with 340.000 "followers". Another one is the Japanese Hiroaki Fukuda with more than 120.000 followers. He is described as a specialist in relating architecture to people. Another participant is Carol Peña designated by Instagram as the best-known Spanish user.
The ten instagram photographers who sum a total of nearly 1.4 M followers will follow a route from Barcelona to the Ebro delta region, the Costa Daurada ("Gold Coast"), and the Sònar (electronic music) festival.
[The original piece of news was published here.]
Some advice by Fukuda and others for your own instagraming on Conde Nast's page here.