Vallejo sits on the northern San Francisco Bay with a compact waterfront downtown, parks and trails, historic Mare Island and family attractions like Six Flags—making it an affordable, livable Bay Area base for multi‑week assignments with good dining, outdoor options, and reliable ferry and commuter links.
You’re roughly 20–30 miles from Oakland, about 30 miles (or a 30–40 minute ferry) from San Francisco, and a short 20–25 minute drive to Napa wine country, so evenings and weekends can easily include big‑city culture or winery day trips.