Here are the latest Waterfront-North End-Financial District neighborhood notes:

Love your block

Love Your Block, formerly Boston Shines, will be held from 9 a.m. to 3 p.m. on Saturday, April 29, meeting at the Paul Revere Mall (Prado.)

Volunteers are needed to help cleanup community gardens, pocket parks, public schools and sidewalks.

To signup online, visit www.boston.gov/love-your-block-volunteer-signup-form.

Jazz night

The Les Sampou Quartet will perform as part of the Allegro Concert Series at 6 p.m. on Saturday, April 29 at I Am Books, 189 North St.

The quartet will present a set of American Songbook vocal favorites in the style of performers such as Ella Fitzgerald and Diana Krall and jazz instrumentals performed by the talented musicians; Davide Lo Cascio, drums; Hayoung Lyou, keyboards/piano; Soso Gelovani on bass and Les Sampou, vocals.

Admission is free. Call 857-263-7665 or visit www.iambooksboston.com for more information.

Seamounts Marine Monument

The New England Aquarium at Central Wharf Simons IMAX Theatre will present “A Stroll Through the New Northeast Canyons and Seamounts Marine National Monument” at 7 p.m. on Thursday, May 4.

Dr. Peter Auster, senior research scientist, Mystic Aquarium and professor of marine sciences, University of Connecticut, and Dr. Scott Kraus, vice president of research at the New England Aquarium, will talk about the Northeast Canyons and Seamounts Marine National Monument, which was designated by President Obama in September 2016, the only marine national monument in the U.S. Atlantic Ocean and the only one located off the continental U.S. In this illustrated lecture, they will recount their many years of research on marine mammals and deep-sea ecology in this region beyond the edge of our continental shelf gathered using ships, aircraft and deep-sea submersibles.

The lecture is free, but registration is required and can be made at www.neaq.org or by calling 617-973-0235.

Band concert

The Stratford Central Symphonic Band and Central Singers will perform in a free concert at 11:30 a.m. on Friday, May 5 at Faneuil Hall Marketplace, South Market, Congress Street.

Stratford Central School is a grade 7-12 school in Stratford, Ontario and is considered the arts school for the Avon Maitland District School Board. The Symphonic Band includes students from grades 10-12 and performs in the Kiwanis Music Festival, at their own concerts and at MusicFest regional and national competitions. Central Singers is a four-part choir from grades 9-12. They perform both an accompanied and a cappella repertoire. They have performed at the Ontario Vocal Festival and at the MusicFest nationals.

For more information, visit www.faneuilhallmarketplace.com.

Neighborhood social

The Friends of Christopher Columbus Park will host the annual tot lot cleanup and neighborhood social from 11 a.m. to 1 p.m. on Saturday, May 6 at the park at 110 Atlantic Ave.

Help is needed in cleaning up the playground and replacing the sand in the sandbox. A free neighborhood social with pizza, games, Big Joe the Storyteller, face painting, prizes and entertainment will follow the cleanup.

Visit www.foccp.org for further information.

Art of gilding

The Paul Revere House, 19 North Square, will welcome professional gilder Nancy Dick Atkinson from 1 to 3 p.m. on Saturday, May 6.

Visitors can watch Atkinson apply gossamer thin sheets of gold leaf to wooden ornaments just as craftsmen did in Revere’s era.

Admission is free with museum admission. Members and North End residents are admitted free at all times.

Visit www.paulreverehouse.org or call 617-523-2338 for further information.

World Labyrinth Day

The community is invited to celebrate World Labyrinth Day from 1 to 3 p.m. on Saturday, May 6 at the Armenian Heritage Park on the Rose Kennedy Greenway.

Visitors can join this annual international initiative of the Labyrinth Society in collaboration with the Labyrinth Guild of New England and the Friends of Armenian Heritage Park in walking the labyrinth at the same time as people in cities and towns worldwide. They should arrive at 12:45 p.m. for an introduction to walking the labyrinth.

There will also be a reception to view the 2017 configuration of the abstract sculpture from 2 to 3 p.m. Jared Bowen of WGBH and host of “Open Studio” will give the remarks, followed by tea and desserts.

For further details, visit www.rosekennedygreenway.org or call 617-292-0020.

Coffee hour

Mayor Martin J. Walsh and the Parks and Recreation Department will host the 19th annual neighborhood coffee hour from 9:30 to 10:30 a.m. on Tuesday, May 9 at Christopher Columbus Park, 110 Atlantic Ave.

Residents will enjoy coffee and breakfast treats from Dunkin’ Donuts and Whole Foods Market while they discuss open space and recreational needs with the mayor.

There will be prizes, including gift certificates, swan boat rides, free downtown parking and gift baskets. Attendees will receive a flowering plant grown in the city’s greenhouses.

Call 617-635-4505 for more information.

Dark side of Boston

Boston By Foot is presenting guided walking tours of the darker side of Boston from 6 to 7:30 p.m. on Fridays, Saturdays and Sundays. Participants should meet the guide at the corner of Hanover and Cross Streets, across from the Rose Fitzgerald Kennedy Greenway. Reservations are not required.

Visitors will hear the stories of misery, misfortune and murder based on true, historical events, such as the Great Influenza, the vandalizing of the Royal Governor’s House, the Molasses Flood and the infamous Brink’s robbery, all against the backdrop of Boston’s oldest neighborhood.

Tickets are $13 for adults, $8 for children if purchased in advance and free for members.

For more information, visit www.bostonbyfoot.org or call 617-367-2345.

Carousel is open

The Rose F. Kennedy Conservancy has opened the Greenway carousel from 11 a.m. to 7 p.m. seven days a week for the summer season. This one-of-a-kind carousel features animals native to Boston such as lobster, cod, fox, squirrel, grasshopper, peregrine falcon, turtle, oarfish, whale, rabbit, harbor seal and more. It was designed to be accessible to individuals with physical, cognitive and sensory disabilities.

Rides are $3 each or $25 for a book of 10.

Visit www.rosekennedygreenway.org for more information.

‘Under the Sea’

The New England Aquarium, Central Wharf, is presenting three films at 10 a.m. and 1, 2, 4 and 6 p.m. now through April in the IMAX Theater.

The films include “Humpback Whales,” narrated by Ewan McGregor, “Great White Shark” and “Galapagos: Nature’s Wonderland.” All will be presented in 3-D.

For more information, visit www.neaq.org or call 617-226-2149.

Aquarium fun

The New England Aquarium, Central Wharf, will host a family fun day at 10 a.m. on Fridays during April.

Visitors will enjoy activities created especially for families with young children, joining staff in the Curious George Discovery Corner for stories, games and art projects that focus on favorite aquatic animals. The program is free with regular admission.

Call 617-973-5206 or visit www.neaq.org for more details.