The fourth annual Great Bay Music Festival offers locals a chance to party like it’s 1969. The four-day music and camping festival will present 26 bands at Back River Farm in Dover from Thursday to Sunday, Aug. 18 to 21.

Among this year’s headliners are Sam Kininger Band on Friday, John Brown’s Body on Saturday, and Zach Deputy on Sunday. Other acts include Ron Noyes Band, Dopapod, Nate Wilson Group, Goosepimp Orchestra, Dub Apocalypse, Richard James & the Name Changers, Truffle, The Amorphous Band, Brooks Young Band, Superfrog, Welcome to Florida, Ghost Dinner Band, Jeff Conley Band, Michael Bernier and The Uprising, Todo Bien, Sarah Blacker, Love in Stockholm, Among Criminals, Brother McCann, Otis Grove, The Cheddar Band, Soul Robot, and Seed.  

The music unfolds on three stages spread across a grassy bayside field at the Dover farm, where “Woodstock” film director Michael Wadleigh recently lived. There will be local food vendors, kite flying demonstrations, volleyball games, hula hooping lessons, yoga, chair massages, bonfires, drum circles, craft and clothing vendors and more. The BYOB event begins at 3 p.m. on Thursday at 111 Bay View Road. 

Guests can camp on the property from Thursday to Sunday, with passes for all three nights available for $75 ($70 for Friday and Saturday nights only). Single day passes are $25 for Friday or Sunday, $35 for Saturday. 

Proceeds will help launch the Great Bay Wilderness and Music Camp, a non-profit educational organization aimed at teaching people about environmental issues with activities like hiking, camping, kayaking, climbing, music and more.

For more information, visit www.greatbaymusicfestival.org.