Friday, August 16 

Free Fun Friday. Sponsored by the Highland Street Foundation, take advantage of free admission to the following: John F. Kennedy Presidential Library & Museum; Berkshire Theatre Group; Cahoon Museum of American Art; Discovery Museum; Fruitlands Museum; Fuller Craft Museum; Paragon Carousel; Provincetown Art Association & Museum; USS Constitution Museum. Hours vary.

Free Friday Flicks: Captain Marvel. Hatch Shell, 47 David G Mugar Way, Boston. 6 p.m. Bring a blanket or lawn chair, pack a picnic, enjoy free games, and watch as Carol Danvers becomes one of the universe’s most powerful leaders as Earth finds itself thrown into the midst of a galactic war. Free. wbznewsradio.iheart.com/featured/free-Friday-flicks.

Saturday, August 17

Gloucester Waterfront Festival. Stage Fort Park, 24 Hough Ave., Gloucester. 9 a.m.-6 p.m. Bring your appetite for food, fun, and art, during this weekend featuring gourmet delights, traditional fair fare, family style entertainment, crafts, and more. Free. castleberryfairs.com.

MFA Playdates: Helping Hands. Museum of Fine Arts: Boston, 465 Huntington Ave., Boston. 10:15-11 a.m. Enjoy story time and looking activities in the galleries followed by art making. Recommended for ages 4 and under. Free. with admission. Members free; nonmember adults $25, youths 7 and up $10, ages 6 and under free. mfa.org.

Happier Family Comedy Show. Eric Carle Museum, 125 West Bay Rd., Amherst. 3-4 p.m. Let creativity flourish in this on-the-spot based improv show for the entire family to enjoy. Member adults $9, youths $4.50; nonmember adults $10, youths $5. carlemuseum.org.

Family Film Festival: Alice in Wonderland. Prudential Center, 800 Boylston St., Boston. 6 p.m. Enjoy entertainment, children’s activities, giveaways, and this classic Disney animated film following a young girl as she falls down the rabbit hole on an adventure to Wonderland. Free. prudentialcenter.com.

Sunday, August 18

Gloucester Waterfront Festival. Stage Fort Park, 24 Hough Ave., Gloucester. 9 a.m.-5 p.m. Bring your appetite for food, fun, and art, during this weekend featuring gourmet delights, traditional fair fare, family style entertainment, crafts, and more. Free. castleberryfairs.com.

Everyday Engineering: Cup Towers. Discovery Museum, 177 Main St., Acton. 11 a.m.-2 p.m. Engage in some everyday engineering as we build one-of-a-kind tower made entirely out of cups. Free with admission. Members free; nonmembers $14.50, ages under 1 free. discoveryacton.org.

Quincy August Moon Festival. Quincy Center, Coddington St., Quincy. 12-5 p.m. Celebrate diversity and community spirit, during this day featuring traditional and contemporary performances, arts and crafts, a kid’s zone, and delicious food. quincyasianresources.org.

Bound for Glory: Woody Guthrie Tribute Concert. Fruitlands Museum, 102 Prospect Hill Rd., Harvard. 2-4 p.m. Bring your lawn chairs, blankets, and afternoon picnics as the Folk Song Society of Greater Boston presents this annual Woody Guthrie Tribute show. Free. fruitlands.org.

Boston Area Chantey & Maritime Sing. USS Constitution Museum, Building 22, Charlestown Navy Yard, Charlestown. 2-5 p.m. Listen, learn, and lift your voices, as you participate in your maritime heritage by joining a rousing chorus of sea chanteys. Suggested Donations. Adults $10-15, children $5-10, families $25-45. ussconstitutionmuseum.org.