Alcudia's annual cuttlefish fair provides the chance to sample cuttlefish (sípia or sepia) at a number of stalls, bars and restaurants - you can follow a gastronomy trail to ensure you don't miss any dishes!
There will be an exhibition, a craft market, a boat show, children's parties and a playground, and a food market. The Giants of Mallorca will parade at 16:00 and live music starts at 21:00. Similar fun is to be had on Sunday.
Take a look at the programme in the website link (available about a week before the event).