La Merce home
1. Bastoners: The party kicks off in Pl. Sant Jaume at 10am with Barcelona's bastoner groups. Catalunya's answer to Morris dancers (but considerably cooler) will dance their way through the old town.
2. Urban dance classes: Join Catalunya's most celebrated hip hop and urban dance troupe, Brodas Bro. They'll be teaching people some new moves at this open workshop in the Ciutadella, from 11am.
3. Circus at the castle: The Montjuïc castle is hosting circus acts from all over the world throughout the festival. Shows are on throughout the day.
4. Nits al Parlament: Head to the Parlament in the Ciutadella park for light and music shows that using the buildings as backdrop.
5. Mostra de Vins i Caves: Wine and cava lovers should make for the Arc de Triomf, where producers from all over Catalunya will be more than happy for you to taste their wares.
6. Choral concert: 200 singers from the oldest choirs in Catalunya and Barcelona will come together to sing on the Av. de la Catedral at 6pm.
7. Havaneres: Grab a white handkerchief and some rum and go to Moll de la Fusta to hear some lilting havaneres (sea shanties that were sung by Catalans returning from Cuba) at 6pm, 8pm and 10pm.
8. La Porta del'Infern: One of the Mercè's most intense celebrations, the Hell's Door involves a frenzy of drumming that calls the fire-breathing beasts and dragons to come through the door... See it yourselves at 8.15pm (Via Laietana 33).
9. Lanterns on the Lake: The group from Newcastle will be bringing their symphonic pop to Pl. Àngels at 9.15pm.
10. Dance: The Ciutadella is the main stage for this year's MAC section, which is dedicated to dance. Performances are on all day and well into the night.
See the complete Mercé programme here.