The Hudson Valley is brimming with ways to celebrate Halloween this weekend. Kids can share some spooky tales around the campfire, paint a pumpkin at a party, visit fairy-tale characters along Trick-or-Treat Trail, follow a parade of pumpkins, plus more. Find the details here.

Sunday: “I Spy” Halloween Nature Trail in Cornwall

Join the scavenger hunt for animal bones, skulls and other cool and curious objects hidden along the Halloween Nature Trail, where kids can discover which items belong in nature and which do not. Those who find all the items will win a prize. Games and crafts will be available at the visitor center, and spiders, millipedes and a hissing cockroach will be on display in the creepy critters pavilion. Refreshments will be available for purchase.

When: Noon-4 p.m. Sunday

Info: Hudson Highlands Nature Museum’s Outdoor Discovery Center, Muser Drive across from 174 Angola Rd., Cornwall; 845-534-5506, ext. 204;; free for adults, $7 for kids 2-14 ($5 for members)

Info: Wagon Road Camp, 431 Quaker Rd., Chappaqua; 914-238-4761;; free

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Sunday: Scarecrows and pumpkins parade in Scarsdale

If you carved a pumpkin or built a scarecrow at the Greenburgh Nature Center’s Fall Festival last weekend – or even if you didn’t -- now’s your chance to see those Halloween creations on display as you follow the friendly scarecrows in a parade along the pumpkin trail. Kids are invited to come in costume for cider, treats, tattoos and more. California Pizza Kitchen will be on hand to sell refreshments at the event.

When: 11 a.m-3:30 p.m., Sunday, Oct. 28

Info: Greenburgh Nature Center, 99 Dromore Rd., Scarsdale; 914-723-3470;; $6 for members, $9 for nonmembers; receive a $2 per admission discount if you preregister by Oct. 27