Here are the latest South Boston neighborhood notes:

Boston Light tours

Boston Harbor Islands will offer two tours of Boston Light at 1 p.m. on Saturdays, Aug. 4 and 11. Tours will depart from the Boston Harbor Islands Welcome Center on the Rose Kennedy Greenway.

This special narrated cruise will voyage through maritime history and pass renowned Boston Harbor landmarks on these three-lighthouse tours. The two-hour cruise will sail past Long Island Light, Graves Light and Boston Light, America’s oldest light station.

Staff and volunteers from the National Park Service and U.S. Coast Guard will provide the narrations and programs on-board. There is no food or water available on the boat so passengers should feel free to bring their own snacks and meals.

Tickets are $35 for adults; $30 for seniors/students/military, $25 for children and free for kids, ages 3 and under.

To purchase tickets and for more details, visit www.bostonharborislands.org.

Georges Island fun

The Boston Harbor Islands will host free family events on Georges Island from 11:15 a.m. to 5 p.m. on Saturday, Aug. 4.

Visitors can enjoy an interactive tour of Fort Warren especially for kids from 11:15 to 11:45 a.m.; learn about what lies beneath the ocean with staff from the New England Aquarium from 11:15 a.m. to 2:30 p.m.; dress up in Civil War costumes from noon to 2 p.m.; and hear about the legend of the Lady in Black at 2:15 p.m.

From 1:30 to 3:30 p.m., visitors can enjoy the musical talents of the reggae pop duo Maddakaya and songstress Safiya Leslie.

For more details, visit www.bostonharborislands.org or call 617-223-8666.

Fundraiser concert

Save the Harbor will host the Soundwaves Blues Beach Festival fundraiser concert from noon to 6 p.m. on Sunday, Aug. 5. The band boat will leave from Rowes Wharf at noon and dock at the Boston Fish Pier.

Acts will include the Johnny Blue Horn’s Blues Syndicate, with Ed Scheer and Brian David Templeton, Sonya Rae Taylor and the Ryan Taylor Band, with Nephtaliem McCrary. JSN Grooves will be the special guest. Attendees are encouraged to bring a lunch and non-alcoholic beverages. A cash bar will be on board the boat.

Band boats for the festival will depart Rowes Wharf at noon and return at 5 p.m. Boat tickets are $20 online or $25 at the dock.

Call 617-451-2860 or visit www.rhythmroomentertainment.com for more details.

Starring Lucille Ball

A series of vintage films in celebration of the birthday of comedy legend Lucille Ball will be screened from 1 to 3 p.m. on Tuesdays during August at the South Boston Branch Library, 646 East Broadway.

The films all starring Ball will include “Miss Grant Takes Richmond” co-starring William Holden on Aug. 7; “Fancy Pants” with Bob Hope on Aug. 14; “The Fuller Brush Girl” with Eddie Albert on Aug. 21; and “Forever, Darling” with James Mason and Desi Arnaz on Aug. 28.

Call 617-268-0180 for further information.

Jazz at the courthouse

The John Joseph Moakley Courthouse, 1 Courthouse Way, will host a free outdoor summer concert in the Harbor Park at 12:30 p.m. on Tuesday, Aug. 7.

The ensemble Jury of Jazz will entertain.

Visit www.moakleycourthouse.com or call 617-261-2440 for more details.

Music on the harbor

Berklee College of Music and the Institute of Contemporary Art, 100 Northern Ave., will present a HarborWalk Sounds concert from 6 to 8:30 p.m. on Thursday, Aug. 9 on the museum’s Putnam Investment Plaza.

The evening will feature the triple-header of Peruvian singer-songwriter Nicole Zignano, Venezuelan singer Nani, who merges pop, R&B and Latin sounds, and a dance performance from choreographer Christina Morrison.

Admission is free. Call 617-478-3103 or visit www.icaboston.org for more information.

Boston Harbor Islands

The Highland Street Foundation will offer free ferry transportation to Spectacle Island and Georges Island on Friday, Aug. 10 as part of its Free Fun Fridays celebrations. The ferries will depart from Long Wharf, 408 Atlantic Ave.

Visitors can explore historic Fort Warren on Georges Island or walk Spectacle Island’s sandy beaches and winding trails. Tickets are first-come, first-served and limited to parties of four or fewer, with no advance reservations. Tickets will become available starting at 8 a.m. at the Boston Harbor Cruises Ferry Center at Long Wharf North.

For more information, visit www.bostonharborislands.org or call 617-770-0040.

Community day

The Institute of Contemporary Art, 100 Northern Ave., will open its doors to the public for a free community day from 10 a.m. to 5 p.m. on Friday, Aug. 10.

This program, part of the 10th annual Free Fun Fridays sponsored by the Highland Street Foundation, will offer free museum admission to all ages.

Visit www.highlandstreet.org or call 617-969-8900 for more information.

Civil War on the islands

Boston Harbor Islands will host activities commemorating the Civil War at Fort Warren on Georges Island from 11 a.m. to 3 p.m. on Sunday, Aug. 12. Park ferries will depart from Long Wharf.

Visitors will step back in time and meet the 54th Massachusetts Regiment, the first African American regiment of the Civil War. An original play on the “Lady in Black” will be held on Fort Warren’s outdoor stage.

They can also hear about the Civil War and the games kids and adults used to play to entertain themselves at the fort and make 19th century crafts.

Admission is free. Call 617-223-8666 or visit www.bostonharborislands.org for more information.

Art at the courthouse

The Moakley U.S. Courthouse, 1 Courthouse Way, is hosting special exhibits now through Sept. 30.

The HarborPark Exhibit features photographs of “Boston’s Hidden Sacred Spaces.” Sociologist Wendy Cadge and photographer Randall Armor have documented more than 60 sacred spaces in and around greater Boston. This remarkable project provides a glimpse into the life and history of the city from a sacred edge and an appreciation for what these spaces offer, both literally and symbolically, to residents and visitors alike.

Polymer clay mosaics by Audrey Markoff and Greg Dunn are on display in the Atrium Exhibit.

The Front Lobby is hosting “A Tribute to John Joseph Moakley.” This exhibition is open until Aug. 31.

Gallery hours are from 8 a.m. to 6 p.m. on Mondays through Fridays. A photo I.D. is required to enter the courthouse.

Visit www.moakleycourthouse.com or call 617-261-2440 for further information.

Family art days

The Institute of Contemporary Art, 100 Northern Ave., is hosting free family days from noon to 4 p.m. on Saturdays and Sundays, now through Sept. 2.

Saya Woolfalk is a New York–based artist who uses science fiction, technology and fantasy to re-imagine the world and think about how combining cultures can create more utopian societies.

In “Hybrid-Digital Home,” she has collaborated with her six-year-old daughter, Aya Woolfalk Mitchell, to reinvent the ICA’s Art Lab as a warm domestic environment made up of a lively combination of patterns.

The installation combines textile patterns from around the world with computer-generated patterns based on visitor drawings created in Scratch. Developed at MIT, Scratch is a free programming language and online community where children can program and share interactive media.

Visitors of all ages are invited to contribute drawings to be digitally patterned and added to the wall, creating a collaboratively generated portrait of home.

Registration is not required. Families can learn to use Scratch at an ICA family workshop on Aug. 4.

Further information can be found at www.icaboston.org or by calling 617-478-3100.

Farmers’ market

The South Boston farmers’ market is being held from noon to 6 p.m. on Mondays through Oct. 22 at 446 West Broadway in the municipal parking lot.

Local vendors will sell flowers, herbs, locally produced honey, baked goods, fresh fish, crafts, housewares and local farmers’ produce.

Call 617-464-5858 or send an email to marosher@sbchc.org for more information

Castle Island tours

The Castle Island Association and the Massachusetts Department of Conservation and Recreation is offering free, guided, 60-minute tours of Fort Independence at Castle Island from noon to 3:30 p.m. on Saturdays and Sundays and at 6 p.m. on Thursdays. Castle Island is located at the end of Day Boulevard.

Castle Island, the oldest continuously fortified site in North America, is home to Fort Independence, a pentagonal five-bastioned fort built between 1834 and 1851. Castle Island’s eighth fort was built with granite from quarries in Rockport.

Fort Independence and Castle Island are on the State and National Registers of Historic Places.

Further information can be found at www.mass.gov/dcr or by calling 617-333-7404.

Pop-up art talk

A pop up talk will be held from 6 to 8 p.m. on Fridays in the fourth floor galleries at the Institute of Contemporary Art, 100 Northern Ave. The talk will introduce visitors to a different perspective of contemporary art from individuals who study the exhibitions every day. The visitor assistants (VAs), wearing “Ask Me” buttons, will give 15-minute talks in front of works of art.

Tickets are free with museum admission.

Visit www.icaboston.org or call 617-478-3103 for further details.