Gene Casey will play at the Riverhead Moose Lodge homeless benefit this Saturday. (Photo credit: David Benthal)

FRIDAY

Friday Family Flick: Wicked/Cutchogue-New Suffolk Library, 27550 Main Road, Cutchogue, 631-734-6360

Take the family to a free showing of Wicked from 4-7 p.m. in the library’s Community Room. Children under 10 must be accompanied by an adult or caregiver (movie is recommended for kids age 7+). For more details, click here.

Route 48 Band/Pindar Vineyards, 37645 Main Road, Peconic, 631-331-6200

Dance the night away after hours at Pindar from 7-9:30 p.m. to the Route 48 Band’s brand of rock and roll. No cover; for more information, click here

SATURDAY

Planting Day/Mattituck Park District’s Sabat Meadow, 1865 Bay Avenue, Mattituck, 631-298-9103

Volunteers are needed as the Park District creates a new pollinator meadow starting at noon; tools and water are provided and a food truck will be available; CAST will host a food drive as well. Rain date is Sunday, April 27 at noon. To sign up, click here

Spirits with Spirit: A Divine Evening with MaryAnn DiMarco/Bedell Cellars, 36225 Main Road, Cutchogue, 631-734-7537

Renowned psychic medium MaryAnn DiMarco presents an evening of spiritual connection from 4:30-8:30 p.m.; tickets are $225 for wine club members, $250 for non-members, and include gallery readings and a complimentary glass of wine. To reserve and for more details, check here.

Rockin’ for the Homeless/ Riverhead Moose Lodge, 51 Madison St., Riverhead, 631-727-6667

It’s a night of music, dancing, raffles, food and fun to benefit Maureen’s Haven Homeless Outreach; with Gene Casey and the Lone Sharks, Who Are Those Guys, and The Vinyl Rockers. From 6-10 p.m.; doors open at 5:30 p.m.; advance tickets only, $50 per person or table of 10 for $500. Tickets on sale at the Riverhead Moose Lodge, Wendy’s Deli, Love Lane Kitchen or at maureenshaven.org. For more information, click here

Discover the Night/Custer Institute and Observatory, 1115 Main Bayview Road, Southold, 631-765-2626

Celebrate International Dark Sky Week with an evening of events: guided walks in the ReWild native garden at 6 p.m.; tours of the observatory at 7 p.m.; astronomy talk at 8 p.m.; stargazing from 8 p.m.-midnight. Suggested donation $5 for adults, $3 for children under 16; free for observatory members. For the full schedule, click here

SUNDAY

Earth Day 5K Race/Indian Island County Park, 105 Cross River Drive, Riverhead, 631-852-3232

Sponsored by the North Fork Environmental Council, this race’s proceeds go to fund scholarships and environmental educational programs. Race starts at 10 a.m.; cost is $30 for individuals, $15 for 16 and under, and $80 for a family of 4. To sign up click here.

UpSculpt Lecture and Demo/East End Seaport Museum, 100 3rd St., Greenport, 631-477-2100

Take in this talk about artwork created with marine debris at 3 p.m.; free for museum members, $10 for non-members. For more information, look here