It's a weekend of festivals and celebrations. Watch boat races and cultural performances at the Worcester Dragon Boat Festival, sample mooncake at the Chinatown Lantern Festival, or have some good, sticky fun celebrating the New England staple at the What The Fluff Festival.

Saturday, September 22 

Worcester Dragon Boat Festival. DCR Regatta Point, Lake Quinsigamond, 10 North Lake Ave., Worcester. 9 a.m.-4 p.m. Enjoy dragon boat races, cultural performances, vendors, food, music, activities, and fun. Free. worcesterdragonboats.com.

Fruitlands 8th Annual Craft Festival. Fruitlands Museum, 102 Prospect Hill Rd., Harvard. 10 a.m.-4 p.m. Enjoy original handmade crafts by 48 New England artisans, with a food truck, live music, and fun throughout the day. Through Sunday. Members free; nonmember adults $10, children $5. fruitlands.org.

The 5th Annual Lantern Festival. Chinatown Park, Rose Kennedy Greenway, 70 Beach St., Boston. 10 a.m.-6 p.m. A day of fun festivities, games, and mooncake sampling to kick off the celebrations for the traditional mid-Autumn Festival. Free. chinatownmainstreet.org.

Family Yoga Class. Newton Free Library, 330 Homer St., Newton. 10:30-11:30 a.m. Learn age appropriate poses, partner poses between parents and children, breathing exercises, simple mindfulness activities, and relaxation during this calming class. Recommended for ages 3 to 12 with caregiver. Free. newtonfreelibrary.net.

Kitchen Ka-Boom. Berkshire Museum, 39 South St., Pittsfield. 11 a.m. Kids can be kitchen scientists with hands-on, safe experiments taking what we use to cook to experiment. Free with admission. Members free; nonmember adults $13, children ages 4 and up $6, ages under 4 free. berkshiremuseum.org.

Backyard and Beyond: Nature Journaling – Signs of the Season. Discovery Museum, 177 Main St., Acton. 11-11:30 a.m. Explore the natural world through science, art, and writing, as we make nature journals and then take them on a nature walk starting at 11:30. Free with admission. Members free; nonmembers $14.50, ages under 1 free. discoveryacton.org.

Smithsonian Magazine Museum Day. Museum of Russian Icons, 203 Union St., Clinton. 11 a.m.-4 p.m. Celebrate boundless curiosity through the support of the Smithsonian Magazine. Free with Museum Day ticket. museumofrussianicons.org.

Mystic River Celebration. Condon Shell, 2501 Mystic Valley Pkwy, Medford. 12-4 p.m. Spend the afternoon at Medford’s biggest arts festival featuring live musician performances, local artisan crafts, food, fun activities, and more. Free. cacheinmedford.org.

The Incredibles. Newton Free Library, 330 Homer St., Newton. 2 p.m. Settle in and follow a family of supers as they chart their own path and forge their ties together during this Pixar favorite. Free. newtonfreelibrary.net.

Disney Junior Dance Party. The Wang Theatre, 270 Tremont St., Boston. 2 p.m. & 5 p.m. Dance along with Mickey, Minnie, Goofy, Sofia the First, Doc McStuffins, and more during this interactive dance party. $29.50 and up. bochcenter.org.

What the Fluff Festival. Union Square, Somerville. 3 p.m. Celebrate the New England staple Marshmallow Fluff during this day of entertainment, cooking contests, fluff-themed activities, and good sticky fluffy fun. Free. flufffestival.com.

Sunday, September 23 

Children’s Book Illustration with Timothy Basil Ering. Museum of Fine Arts: Boston, 465 Huntington Ave., Boston. 12-3 p.m. Discover the inspiration and technique of illustrating children’s books with this award-winning illustrator known for his originality and inventiveness. Free with admission. Members free; nonmember adults $25, youth 7 and up $10, ages under 7 free. mfa.org.

Meet Dav Pilkey. The Eric Carle Museum of Picture Book Art, 125 West Bay Rd., Amherst. 12:30-3:30 p.m. Meet the mind and artist behind Captain Underpants and Dog Man series, as he talks about his new book, does live drawing, and shares fun trivia. Register ahead. Free with admission. Adults $9, youths $6, ages under 1 free. carlemuseum.org.

Welcome to Night Vale with Musical Guest Mal. Berklee Performance Center, 136 Massachusetts Ave., Boston. 7 p.m. Revel in this cultural gem of a twice-monthly podcast in the style of community updates for the small desert town of Night Vale, mixing spooks, chuckles, and charm. $27.50-32.50. berklee.edu/events.