"Beer Palma" Festival is held at the end of April and the beginning of May, in the Parc de la Mar in front of the Cathedral. Entry is free!
Every Spring, 200 beer brands from all over the world exhibit at Beer Palma - Fiesta de la Cerveza right in front of Palma's iconic cathedral. Large international beer brands and small breweries can be found, including a dozen small Mallorcan breweries.
At the fair, there's the opportunity to sample a whole host of beers alongside some tasty tapas.
More information on their website.
Parc de La Mar