4 Fun Things to do in the Bay Area this weekend

(KRON) — KRON4 Chief Meteorologist Lawrence Karnow shares 4 Fun Things happening in the Bay Area this weekend.

• Mare Island Halloween Block Party – Vallejo
• 5th Annual Great Hauntway – Ocean Beach
• 2025 Bay Area Science Festival – San Francisco
• 43rd Annual Sandcastle Classic Contest – San Francisco

​(KRON) — KRON4 Chief Meteorologist Lawrence Karnow shares 4 Fun Things happening in the Bay Area this weekend.