Art at Bar 135 “Alchemy” is the theme of a 12-artist group show opening Wed., Oct. 3 at Bar 135,135 Reade St. In both the East and West, writes curator Maria Yoon, alchemy “has long fascinated humanity with its mystical and transformative nature.” The show runs until Tuesday, Oct. 31. Opening reception is Wed., Oct. 11, from 5 to 8pm. Above: “Sanctuary #3” by Michael Wolf.

At the African Burial Ground The National Park Service is presenting a series of free events at the African Burial Ground National Monument in honor of the 20th Anniversary of Reinterment of the Ancestors. Events will be held at the memorial on Duane Street and in the theater at 290 Broadway Oct. 3-7, bet. 11am and 4pm. A full listing of events is here.

Family Activities at Bogardus Plaza On Sun., Oct. 29, 10:30am., Book Nook presents "Story Time on the Plaza," featuring Stellar the Storyteller telling Halloween tales. There will also be arts and crafts. Bogardus Plaza is on Hudson Street, bet. Chambers and Reade.

October Community Board 1 Calendar Future programming for new Wagner Park pavillion; local schools updates by superintendent; new building proposed for Walker Street; Pace University construction impacts. Click here for all meeting agendas.

Rides In the Harbor South Street Seaport Museum has extended its sailing season aboard the 1885 Schooner Pioneer and the 1930 tugboat W.O. Decker. The 75-minute rides on the W.O. Decker are offered on weekends through Oct. 8. See times and dates here. Information on the sunset and daytime Pioneer sails are Wednesday through Sunday. Information is here. Included is a  pay-what-you-wish admission ticket to the Seaport Museum on the day of your voyage.

Taste of the Seaport returns Sat., Nov. 11 (rescheduled due to weather), for its 13th consecutive year, with food and beverage offerings from more than 40 restaurants and businesses, plus family-friendly entertainment and a KidZone. Tickets:  $65 with 4-pack discounts available. The event, on Piers 16 and 17 from 12 to 5pm, raises funds for cultural enrichment programs at the Spruce Street and Peck Slip School as well as professional development programs for teachers.