Spooky Dry Ice Science

Fri · Oct 30·10 AM – 6 PM·Meadowlark Botanical Gardens, Vienna, VA

A Halloween scavenger hunt at Meadowlark Botanical Gardens begins with a book trail featuring Millie Fleur’s Poison Garden.

Fri · Oct 30·10 AM – 11 AM·Courthouse Library — Children's Area · Arlington

Open play with STEAM games and activities exploring science, technology, engineering, art, and math at the Courthouse Library Children’s Area, for ages 1 and under and 3–5.

Fri · Oct 30·10 AM – 5 PM·Thomas Jefferson Library · Falls Church

Halloween Pop-up Fun at Thomas Jefferson Library offers a creepy bat craft, monster scavenger hunt, and costume treat, for ages 3–10 and 13–18.

Fri · Oct 30·10:10 AM · 10:40 AM·Oakton Library — Oakton Meeting Room 1, Oakton Meeting Room 2

Oakton Library hosts two 30‑minute interactive caregiver‑and‑me classes featuring singing, dancing, gymnastics, limited to 20 seats, tickets at the info desk, for ages 3–5.

Sat · Nov 7·10 AM – 11 AM·Hidden Oaks Nature Center Location, 7701 Royce Street, Annandale, VA 22003

Create animal masterpieces from natural park materials at Hidden Oaks Nature Center, letting imagination guide the work, for ages 5–12.

Fri · Oct 30·4 PM – 9 PM·Upton Hill Regional Park, Arlington, VA

Mini Golf course and Climb UPton transformed into haunted Halloween attractions at Upton Hill Regional Park — all ages.

Fri · Oct 30·4 PM – 5 PM·Sherwood Regional Library — Sherwood Meeting Room · Alexandria

Whip up witch's brew, vampire bloodbath, or creepy‑crawly slime, customizing colors and adding eyeballs or insects, at Sherwood Regional Library’s Meeting Room, for ages 5–10.

Fri · Oct 23·4 PM – 9 PM·Oakmont Rec Center Location, 3200 Jermantown Rd, Oakton, VA 22124

Haunted Mini Golf at Oakmont Rec Center offers trick‑or‑treat prizes at every hole, food trucks, popcorn and games; $15 online, $18 door, all ages.

Fri · Oct 23·5 PM – 8 PM·Frying Pan Farm Park Location, 2709 West Ox Road, Herndon, VA 20171

Trick-or-treat on the farm with farm animals, crafts, games, and a decorated farmhouse tour, in one‑hour slots at Frying Pan Farm Park, for ages 2 and up.

Fri · Oct 23·6:30 PM – 8 PM·Hidden Pond Nature Center Location, 8511 Greeley Blvd., Springfield, VA 22152

Evening campfire at Hidden Pond Nature Center features nature walks, interactive activities, animal presentations and s’mores, all ages.