The festival, organised by the Royal Portland Arms Cricket Club, features music from the Mad Hatters on Friday at 9pm, Becca Langford and Vince Lee and the Plymouth Ragtime Blues on Saturday at 9pm and the Swamp Marshalls on Sunday at 2pm.
Entry is free and there will be beers from English craft brewers plus others from all over the world including Germany, India, Italy and Japan.
Food and soft drinks will be available throughout the festival from the drill hall.
A communal lunch will take place on Sunday at 1.45pm. All who take part are asked to bring something to share. On Friday the festival is from 6pm to midnight, on Saturday it’s from 11am to midnight and on Sunday it’s from noon to 10.30pm.