Get ready for Halloween at BOOtanica!, the Botanical Garden’s annual festival that celebrates October traditions and fall gardening. Let the kids try out their costumes early in the parade, or partake in fun family activities like pumpkin decorating, nature walks, storytelling, and a spooky science show. Walk through a tent filled with live, native butterflies, and take home native trees (one per family) while supplies last. $7 adults, $4 children, 9am-5pm, San Antonio Botanical Garden, 555 Funston, sabot.org.