From its own website

3 Oaks Studio

Winery in Clovis, California

8807 N Sunnyside Ave, Clovis, CA 93619

Dogs

What 3 Oaks Studio says about dogs

Dogs allowed: Yes
From its own website, checked 5 Nov 20263oaksvineyardclovis.com(source page for Dogs allowed, opens in a new tab)
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“Well behaved dogs on leashes are welcome!”
Where dogs can go: Not stated

Informational only. Rules change, so check with the winery before you go.