From its own website

Sunshine Mountain Vineyard

Winery in San Marcos, California

2286 Sunshine Mountain Rd, San Marcos, CA 92069

Dogs

What Sunshine Mountain Vineyard says about dogs

Dogs allowed: Yes
From its own website, checked 5 Nov 2026sunshinemountainwines.com(source page for Dogs allowed, opens in a new tab)
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“We are a pet-friendly winery and welcome well-behaved dogs and other pets on a leash.”
Where dogs can go: Not stated

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