Scavenger Hunt The Great Tribeca Scavenger Hunt, sponsored by Friends of Bogardus Plaza, returns on Oct. 27, from 3 to 5 pm, with 11 prizes from local businesses totaling $2,500. Now in its eighth year, the hunt brings together competing teams who race around the neighborhood looking for clues, completing missions and answering trivia questions. Tickets are $35 per person until Oct. 22, and $40 after that date. All proceeds benefit Friends of Bogardus Plaza, the volunteer group in charge of the plaza at Hudson and Reade Streets. Go here for more information and to buy tickets.

Celebrate Indigenous Peoples’ Day at South Street Seaport Museum on Mon., Oct. 14, 11am-5pm at 12 Fulton St. and Pier 16. Visit the 1885 tall ship Wavertree and tour the 1908 lightship Ambrose. Family activities will include traditional Indigenous games. Admission is pay-what-you-wish. Tickets can be reserved in advance here.

Free outdoor movie “Ghostbusters” comes to a 40-foot LED screen on Fosun Plaza at 28 Liberty Street on Oct. 17, weather permitting, at 7 pm. Audience members can arrive at 6 pm and are encouraged to dress in costumes. There will be an informal Halloween costume contest before the movie.

Community Board 1 October Calendar BPC ball fields update; bus route request; adult homeless shelters near schools; proposed Duane Park expansion; Seaport Coastal Resliency Plans

The Iliad on the Hudson Join Poets House on Fri., Oct. 18,  for a sunset ferry cruise down the Hudson River with readings from The Iliad by Nick Flynn, Eugenia Leigh, Natalie Shapero, Emily Wilson, and friends. The ferry leaves at 5:45pm from the Brookfield Place Terminal. Reception to follow in the Margo Viscusi Reading Room at Poets House at 10 River Terrace. Info here.