Mayfair
May 1. Welcome spring back with Maypole dancing, music, a downtown scavenger hunt, a big tent sale, and citywide yard sales. Free. 207-442-7291. www.visitbath.com

Bath Iron Works Trolley Tour
May 25 – Oct. 12. Go behind the gates of Bath Iron Works (BIW) for an hour-long tour of the old launching ways and BIW’s Land Level Transfer facility, where large vessels are constructed and moved into the dry-dock for launching. $15-$30. 207-443-1316. www.mainemaritimemuseum.org

Homes and Hidden Gardens Tour of Bath
June 12 from 10 a.m. to 3 p.m. A look inside some of Bath’s historic homes and private gardens. Presented by Sagadahoc Preservation. $20. 207-442-7291. www.sagadahocpreservation.org

Maine Maritime Museum
Through June 19. Some Burdensome: Big Ships, Big Cargoes commemorates the hundredth anniversary of the December 15, 1909, launch of the six-masted schooner Wyoming, the largest wooden ship ever built, which was constructed at the shipyard and is now featured in exhibits on the museum’s grounds. 243 Washington St., Bath. $9-$12. 207-443-1316. www.mainemaritimemuseum.org

Lighthouse Cruises
June 19 – Oct. 11. Great Ships and Lighthouses Cruise. This one-hour cruise explores the Kennebec River where American shipbuilding began four hundred years ago. u Six Lighthouse Cruise lets you cruise from Bath to Seguin Island and Light and take in Doubling Point Light, the Kennebec Range lights, Squirrel Point Light, Perkins Island Light, Pond Island Light, and Seguin Island Light. u_Lighthouse Lovers Cruise features Doubling Point Light, the Kennebec Range lights, Squirrel Point Light, Perkins Island and Light, Pond Island and Light, Seguin Island and Light, Cuckolds Light, Ram Island Light, Burnt Island Light, and Hendricks Head Light. $15-$40. 207-443-1316. www.mainemaritimemuseum.org

Summer Gazebo Concert Series
Free outdoor concert series held Tuesday and Friday evenings from late June through August. Jazz and traditional band music featuring the Bath Municipal Band, Bath Municipal Swing Band, and guest performers, at the gazebo in Library Park. Free. 207-442-7291. www.visitbath.com

Summer Third Friday Artwalks
June through Sept. Open galleries and artists’ studios at more than twenty locations throughout the downtown and north end loop of the city. Free. 207-442-7291. www.fiveriversartsalliance.org

Bath Heritage Days Festival
July 2 – July 5. Bath’s annual Heritage Days Festival is the city’s biggest party of the year, packing practically a whole summer’s worth of festivities into a single holiday weekend. Whether you’re a strongman or just have a strong appetite for strawberry pie you’ll find plenty to do with a crafts fair, art show, fireman’s muster, strongman competition, antique cars show, barbecue, live music on the waterfront and at the gazebo, a carnival, fireworks, and the largest Fourth of July parade in Maine. Free. 207-442-7291. www.visitbath.com

Chocolate Church Arts Center
Summer Concerts
The historic 1847 church, which has been offering music, gallery exhibits, lectures, and workshops for more than thirty years, offers a summer-load of musical acts: Eight Strings and a Whistle on July 7; Skip Gorman on July 14; Banjo Dan & The Midnight Plowboys on July 21; the Colwell Brothers on July 28; Luke Kalloch & the Loblolly Boys on Aug. 4; Kelly Ravin on Aug. 11; Carol Noonan on Aug. 18; and Christian Cuff  & Earl Bigelow on Aug. 25. All concerts are at 7:30 p.m. $10. 804 Washington St., Bath. 207-442-8455. www.chocolatechurch.com

Autumnfest
Oct. 9. Community celebration with family activities including scarecrow-making, window-painting, bobbing for apples, an apple-pie baking contest, a Made-In-Maine crafts show, merchants’ open houses, and citizen involvement day with more than thirty Bath area nonprofits sharing information. Free. 207-442-7291. www.visitbath.com

An Old-fashioned Christmas in Bath
Nov. 27 – Dec. 25. Community-wide events begin the Saturday of Thanksgiving weekend with a children’s tree lighting, a visit with Santa, and a Jingle Bell walk. Other holiday activities include a Festival of Trees, artists’ open house, craft shows, community carol singing, and a downtown holiday open house for last-minute shoppers on the evening before Christmas. Free.207-442-7291. www.visitbath.com