Here are the latest South Boston neighborhood notes:

Underground Mural

The Street Theory Underground Mural Project Launch will be held from 2 to 4 p.m. on Saturday, June 15 at the Isabella Stewart Gardner Museum at 25 Evans Way.

Street Theory is a creative agency transforming more than 100,000 square feet of Boston’s underutilized walls into a unique urban park and visual playground between Boston's South End and South Boston neighborhoods.

Street Theory will present a panel talk-back, DJ and multi-media installation in Calderwood Hall. Join the discussion with locally and internationally renowned street-artists, Massachusetts-based mural festival organizers and city stakeholders on the impact of street art on the urban landscape, communities and the people who live in them.

The event is free, but registration is required. Visit gardnermuseum.org to register.

For more information, visit https://www.gardnermuseum.org/calendar/event/amplifier-project-20190615.

Castle Island tours

The Castle Island Association and the Massachusetts Department of Conservation and Recreation will offer free, guided, 60-minute tours of Fort Independence at Castle Island from noon to 3:30 p.m. on Saturdays and Sundays. 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.

Spectacle fundraiser

Boston Harbor Now’s annual fundraising event, Spectacle on Spectacle, will take place from 6 to 9:30 p.m. on Thursday, June 20.

Spectacle on Spectacle will feature a cocktail cruise to Spectacle Island, a scenic sunset over the Boston skyline, New England clambake-inspired plates and a private fireworks display.

The evening will celebrate Boston Harbor Now’s ongoing efforts to: expand public access throughout Boston Harbor; promote climate resilience through well-designed parks, infrastructure and mixed-use development; grow Boston’s maritime industry; and activate the Harbor through exciting programming and educational opportunities.

This year’s event will honor Mayor Martin J. Walsh for his commitment to climate resilience and will be hosted by CBS Boston’s WBZ-TV Chief Meteorologist Eric Fisher.

For more information and to purchase tickets, visit bostonharbornow.org/spectacle.

Group art show

The Distillery Gallery, 516 East Second St., is displaying the group art show “You Must Not Stand in One Place,” now through June 21.

The exhibition brings together artists who tap into alternative worlds by creating grand and radical meta-narratives of society. Through a variety of mediums, they investigate global concerns of today: identities, markets, machines and environments to arrive at value systems that challenge what we can strive for in our current world.

The artists include: Ryan Aasen, Kamal Ahmad, Autumn Ahn and Camille McOuat, Dennis Congdon, Marissa Cote, Medar de la Cruz. Evelyn Eastmond, Tory Fair, Lina Maria Giraldo, Nash Glynn, Duy Hoàng, Kathya Landeros, Jason Lin, Jonathan Mildenberg, Peter Pa, Sheida Soleimani, Jess X. Snow, Keith Washington and Chien-Ying Wu.

The gallery is open from 9 a.m. to 5 p.m. on Mondays to Saturdays and by appointment.

Further information is available at www.distillerygallery.com.

Music and games

The National Park Service, the Dorchester Heights Associations and Boston Harbor Now will host a free summer evening of family fun from 6 to 8 on Saturday, June 22 at Thomas Park, Dorchester Heights in South Boston.

The event will feature live music from Mestiza, a Latin band from Berklee College of Music, and fun with Knucklebones, including lawn games and face painting. National Park Rangers will also be providing history interpretation. Bring a picnic dinner and blankets or lawn chairs.

Mestiza is a female group specializing in a fusion of flamenco, Latin, and jazz genres, with an extended repertoire of covers and originals.

With vibrant vocals and outstanding musicianship, the band’s girl power stands out in a male-dominated environment as one of the most original bands at Berklee College of Music.

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.

Berklee concert series

The Berklee College of Music’s “Summer in the City” free concert series is now underway.

Music ranges from jazz to classical, Latin to funk and folk to world.

They will perform at the South Boston Waterfront on Atlantic Wharf, at noon on Thursdays through Aug. 31 and at the Institute of Contemporary Art at 6 p.m. on Thursdays from July 5 through Aug. 30 (no performances Aug. 9 or 16).

Visit www.berklee.edu for more information.

Free Thursdays at ICA

Every Thursday from 5 to 9 p.m., general admission to the Institute of Contemporary Art at 100 Northern Ave. is free.

The Institute of Contemporary Art strives to share the pleasures of reflection, inspiration, provocation and imagination that contemporary art offers through public access to art, artists and the creative process.

For more information, go to http://www.icaboston.org/visit.

Fenway Challenge

The Fenway Challenge will be held from 10:30 a.m. to noon on Tuesday, July 30 at Lee Playground, 775 East First St.

The free series gives children, ages 7 to 14, the opportunity to test their pitching accuracy, swing in a batting cage and practice base stealing.

The Fenway Challenge, featuring the Red Sox Showcase, will have food and entertainment including virtual reality, a replica Green Monster and Red Sox mascots Wally and Tessie. Participants will also have the opportunity to win Red Sox tickets.

This event is sponsored by the Boston Red Sox, Highland Street Foundation and Boston Parks and Recreation Department.

For more information, contact Cheryl Brown at 617-961-3085 or cheryl.brown@boston.gov. To register, go to https://www.mlb.com/redsox/forms/fenway-challenge.

Model room tours

The BPDA’s model room houses a 1:40 inch scale, physical, basswood model of Boston’s downtown and portions of Beacon Hill, the North End, Charlestown, Back Bay and the South Boston Waterfront.

Free tours are conducted in the BPDA Model Room at Boston City Hall, One City Hall Square, on the 9th Floor every Wednesday at 10 and 11 a.m. in two 30-minute sessions.

For more information, visit bostonplans.org.

For individuals or groups of up to 15 people, register at eventbrite.com.

For groups larger than 15 people email bpda@boston.gov to arrange a tour.

ASD workshop

Has your child recently been diagnosed with Autism Spectrum Disorder (ASD)?

Boston Children's Hospital offers a 90-minute workshop for parents and caregivers to connect with each other and to learn more about your child's diagnosis, including: common recommendations, therapies and services plus resources and tips.

The next workshop is at 1 p.m. on Monday, July 29. More workshops are scheduled for 1 p.m. on Monday, Aug. 12; 9:30 a.m. on Thursday, Sept. 12 and Oct. 3; 10 a.m. on Saturday, Nov. 9 and 1 p.m. on Monday, Dec. 9.

The workshops are held at Boston Children's Hospital Longwood Campus at 300 Longwood Ave. in the Byers Conference Room B (in the Enders Building, to the right of the main hospital emergency department entrance).

For more information, call Kelly Federico at 617-355-5999.

Parking validation is provided for the main Children's Hospital parking garage.

Stewardship Saturday

Stewardship Saturday at Thompson Island will be held on Saturdays from 8 a.m. to 2:30 p.m.

Join other park stewards to enhance native ecosystems and natural processes by studying and influencing changes in park plant biodiversity. People will explore the local flora and fauna and discuss the ecology, natural history and cultural significance of landscapes in the park as stewards work side-by-side to improve habitat for the native birds, bugs, trees and flowers of the Boston Harbor Islands.

For more information about the program (which happens rain or shine), what to wear and bring, directions to the EDIC Ferry Terminal (which is notoriously difficult to find the first time) and confirmation (program destination is subject to change based on field conditions), call 617-913-5349 or call/ text rachel_vincent@nps.gov.