The Treasure Island Flea Market in San Francisco happens on the last weekend of each month from 10:00 a.m. to 4:00 p.m., and it’s one of those places where you can actually spend a couple hours with your dog while picking through vendor stalls. The market sprawls across Treasure Island with plenty of open space, so your dog won’t feel cramped as you’re browsing the mix of hip clothing, handmade bags, jewelry, art, vintage finds, and upcycled goods.

What makes it particularly useful for dog owners is the solid selection of dog food and supplies scattered among the vendors. You’ll find high-quality treats, toys, and accessories, but more importantly, you’ll discover things you wouldn’t see in chain pet stores—artisanal treats, unique collars, eco-friendly products, and organic options. Several vendors specifically focus on sustainable and organic dog products, so if that matters to you, there’s usually something worth investigating. The vendors themselves tend to be dog-friendly and genuinely interested in seeing your dog, which makes the whole experience feel welcoming rather than transactional.

The atmosphere is laid-back enough that your dog can socialize with other dogs and people while you’re shopping. There’s live music playing most months, and you’ll find food vendors selling lunch options, so you could make an afternoon of it. The open layout means your dog can get a decent amount of movement in, which helps if you’re planning a longer visit.

Bring water for your dog since you’ll be outside on Treasure Island with limited shade in some areas. Keep your dog on a leash throughout—the market draws crowds, and the island itself requires it anyway. It’s worth calling ahead if you have questions about specific vendor attendance or any restrictions, since the vendor lineup changes from month to month. If you’re looking for dog supplies with some personality beyond the usual big-box options, this market delivers.