Got room in the tank for one more cool festival on an awesome-weather Labor Day weekend, maybe even with a side trip to the beach? Head to coastal Rhode Island for the annual Rhythm & Roots soiree at Ninigret Park in Charlestown. It all starts Friday night with a Signature Sounds 20^th anniversary celebration headlined by the popular Lake Street Dive, peaks on Saturday with a lively lineup that sports country eccentrics the Mavericks, roots-rockers Los Lobos, Louisiana piano queen Marcia Ball and bluegrass upstarts Della Mae (pictured above) with Jim Lauderdale, and closes out Sunday with crossover troubadour Keb Mo. Plus there are accordion workshops, kids’ Mardi Gras parades, and Cajun and zydeco dance parties with Steve Riley & the Mamou Playboys and Corey Ledet & his Zydeco Band. Here’s the full schedule and rundown.

Other great takes to the South include the J. Geils Band (who just kicked ass in Boston) at India Point Park on the Providence waterfront on Saturday and punk-funk pioneers Fishbone the same night at the Beachcomber in Wellfleet down the Cape. To the north, Della Mae also hits Rockport’s smartly designed Shalin Liu Performance Center on Friday, indie-folk combo the David Wax Museum holds court at Prescott Park in Portsmouth, N.H., on Saturday, and the Mavericks move on to Hampton Beach’s Casino Ballroom on Sunday. Finally, back around Boston, you can catch country-rockers Little Big Town at Blue Hills Bank Pavilion on Friday, a bill of great local bands — Parlour Bells, Band Without Hands, the Static Dynamic and the Rationales — at Cuisine en Locale’s ONCE Ballroom the same night, and veteran shoegaze rockers Swervedriver at the Sinclair on Sunday.