The Loose Association of Plain Air Artists - Opening reception 5-7 p.m. Tuesday. Mystic & Noank Library, 40 Library St., Mystic. Member artists Betsy Broughton Shafer, Trenton Youngs, Janice Silver, Garnet Wrigley and Zimra Sawyer capture the landscape of New England in all its seasons. Through Dec. 31. Hours 10 a.m.-9 p.m. Mon.-Wed. and 10 a.m.-5 p.m. Thurs.-Sat.; (860) 536-7721.

Holiday Artisans - 10 a.m.-5 p.m. Saturday and noon-5 p.m. Sunday. Noank Foundry, 70 Marsh Rd., Noank. Annual holiday celebration with open house, artisan show and sale. Two days only; (860) 572-2799.

MUSEUMS

Holiday Train Show Exhibit - Connecticut River Museum, 67 Main St., Essex; annual family-friendly display by Steve Cryan; through Feb. 17; 10 a.m.-5 p.m. Tue.-Sun.; (860) 767-8269.

Lost at Sea: Shipwrecks of the Ancient World - Lyman Allyn Art Museum, 625 Williams St., New London; exhibit explores cultural treasures of the deep sea and artifacts discovered by Robert Ballard and his team; through Feb. 1; "Catch the Butterflies" installation, created by local artist Brian Keith Stephens, in the Glassenberg Gallery through Jan. 3; 10 a.m.-5 p.m. Tues.-Sat., 1-5 p.m. Sun.; (860) 443-2545.

Life Stories in Art - Florence Griswold Museum, 96 Lyme St., Old Lyme; the Krieble Gallery features more than 70 works by 19th-century painter Mary Rogers Williams; also, 20th-century sculptor Mary Knollenberg; and contemporary glass artist Kari Russell-Pool; through Jan. 25; 10 a.m.-5 p.m. Tues.-Sat. and 1-5 p.m. Sun.; (860) 434-5542.

Washed Ashore - Mystic Aquarium, 55 Coogan Blvd., Mystic; sculptures exclusively from marine debris and plastic pollution; through early spring; 9 a.m.-4 p.m. daily; (860) 572-5955.

Proof Positive - Slater Memorial Museum, Norwich Free Academy, 108 Crescent St., Norwich; works by members of the Printmakers' Network of Southern New England; through Jan. 18; 9 a.m.-4 p.m. Tues.-Sat. and 1-4 p.m. Sun.; slatermuseum.org.

GALLERIES

December: Celebrate the Joy! - Artists' Cooperative Gallery, 7 Canal St., Westerly; works by member artists available for purchase as holiday gifts; through Jan. 4; 11 a.m.-7 p.m. Wed.-Sat., 1-5 p.m. Sun.; (401) 596-2221.

Art for Architects's Sake - Centerbrook Architects, 67 Main St., Centerbrook; 50 works by 14 staff members are featured; 10 a.m.-5 p.m. weekdays; (860) 767-0175.

All Paintings Great and Small - Cooley Gallery, 25 Lyme St., Old Lyme; annual holiday exhibition; through Jan. 10; 10 a.m.-5 p.m. Tues.-Sat.; (860) 434-8807.

Heart and Home - Courtyard Gallery, 12 Water St., Mystic; holiday show, featuring work from over 40 painters and sculptors; 11 a.m.-5:30 p.m. daily, closed Wed; (860) 536-5059.

Juan Balaguer: Familiar Images - Expressiones Cultural Center, 84 Bank St., New London; Argentinian artist-in-residence presents new show through Dec. 20; 11 a.m.-5 p.m. Wed.-Fri., 10 a.m.-1 p.m. Sat.; (860) 501-9278.

The Way We Worked - Groton Public Library, Route 117; 86 photos from a Smithsonian exhibition chronicling American workplaces from 1857-1987; tangential show called "Groton at Work" also on display; through Dec. 20; 9 a.m.-9 p.m. Mon.-Thurs., 9 a.m.-5:30 p.m. Fri., 9 a.m.-5 p.m. Sat.; (860) 441-6750.

Art=Gift - Hygienic Art Galleries, 79 Bank St., New London; annual holiday show featuring dozens of regional artists who created special pieces with gift-giving in mind; through Jan. 3; 11 a.m.-3 p.m. Tues.-Thurs., 11 a.m.-6 p.m. Fri. and Sat. and noon-3 p.m. Sun.; (860) 443-8001.

Faculty Exhibition - Lyme Academy College of Fine Arts' Chauncey Stillman Gallery, 84 Lyme St., Old Lyme; sculpture, painting, drawing and illustration by 13 studio faculty members; through Jan. 10; 10 a.m.-4 p.m. Mon.-Sat.; (860) 434-3571.

Deck the Walls - Lyme Art Association, 90 Lyme St., Old Lyme; more than 100 works of original art by association members on display and priced to sell for holiday gifts; also, a show of landscapes, "Celebrating Lyme's Beauty"; both run through Jan. 3; 10 a.m.-5 p.m. Mon.-Sat. and 1-5 p.m. Sun; (860) 434-7802.

Holiday Exhibit - Maple and Main Gallery, One Maple St. Chester; through Dec. 31; 11 a.m.-6 p.m. Wed.-Sat., 11 a.m.-5 p.m. Sun.; (860) 526-6065.

International Marine Art Exhibition and Sale - Maritime Gallery, Mystic Seaport, 47 Greenmanville Ave., Mystic; works by David Bareford, Harley Bartlett, Laura Cooper, Yoko Gaydos, Ian Hansen, Neal Hughes, Richard Loud, Victor Mays and Jeff Weaver; through Dec. 31; 10 a.m.-5 p.m. daily; (860) 572-5388.

Loose Association of Plein Air Artists - Mystic & Noank Library, 40 Library St., Mystic; during library hours through Dec.; (860) 536-7721.

Holiday Show 2014 - Pratt-Wright Gallery, Main Street, Noank; art works and hand-crafted objects; through Jan. 3; 11 a.m.-5 p.m. Fri. and Sat., noon-5 p.m. Sun. and by appointment; (860) 912-0555.

Scenes From Ivoryton - Six Summit Gallery, 6 Summit St., Ivoryton; mini-sculptures of Ivoryton and over 200 smaller works; through Dec. 31; 11 a.m.-5 p.m. Wed., 11 a.m.-6:30 p.m. Thurs., 10 a.m.-6:30 p.m. Fri., noon- 4 p.m. Sat. and Sun.; (860) 581-8332.

Kindness of Strangers - Spectrum Gallery, 61 Main St., Centerbrook; crafts and fine art reflecting compassion and goodness; through Jan. 11; 11 a.m.-6 p.m. Wed.-Sat., 11 a.m.-5 p.m. Sun; (860) 767-0742.

Holiday Art Show - Studio 33 Art and Framing Gallery, 140 Bank St., New London; works by large group of local artists; through Jan. 16; 9 a.m.-5 p.m. Tues.-Fri., 10 a.m.-3 p.m. Sat.; (860) 442-6355.

Model of Coast Guard Cutter Courier - U.S. Coast Guard Academy, 15 Mohegan Ave., New London; display of a model of the Cold War-era Coast Guard cutter Courier, which served as a radio-relay station for the federal government's "Voice of America" broadcast program; 9 a.m.-4 p.m. weekdays and 10 a.m.-4 p.m. the first and third Saturday of each month.