Sunday, October 25, 2026 · 11:00 am to 5:00 pm · SPARK Social SF · FREE* — Bark at SPARK: Howl-O-Ween! Calling all furry friends and spooky souls—it’s time to paw-ty! Bark at SPARK: Howl-O-Ween! is a celebration of pups, people, and community. Come meet fellow dog lovers,...