I’ve been dreading my first fall and winter with a toddler. Rain, darkness, endless hours indoors with a 19-month-old who is active, particular, and bored easily? Terrifying. So when I heard Issaquah was opening a giant indoor sandbox called The Sand Garden, I wondered if maybe this was the rainy-day miracle I’ve been waiting for.
That “first time in the sand” look. (Image: Britt Thorson / Seattle’s Child)
First Toe Wiggles
We visited at the end of opening day, about an hour before they closed up. The first thing I noticed was how clean the place was. You hear “indoor sandbox” and immediately picture gritty floors and clouds of dust. Instead, the space was bright, open, and spotless.
My daughter Ava had never walked barefoot in sand before. She dangled her feet off the bench, scrunched up her toes, and looked at me like she’d just discovered magic. Then we spent quite some time doing her favorite activity: scooping sand into buckets (“Putting Things In Things” is her current obsession.) Eventually, she moved on to her second obsession, “Taking Things Out of Things,” systematically removing every toy from the neatly stocked shelves, and shovels from their place on the walls. It was like watching her raid our kitchen cabinets at home, only here it was sanctioned (and sandier).
Nothing like a dump truck and a pile of sand to keep little hands busy. (Image: Britt Thorson / Seattle’s Child)
60,000 Pounds of Sand
Let’s talk sand. SandGarden has 60,000 pounds of it — fine, white, silica-free sand sourced from a quarry in Quebec. The owners, April and Graham Quinn, told me they went back and forth on whether they’d ordered enough before finally cutting open the bags. “Every day I’d look at them and think, did we get enough sand?” Graham laughed. “Turns out, yes.”
If you’re imagining coming home with sand in every crevice, you’re not alone — I was skeptical, too. But it wasn’t bad. The sand felt softer and cleaner than beach sand (because it is), brushed right off clothes, and while Ava’s hair still had grains in it at bath time that were just as hard to get out as ever, we didn’t trail it through the car or house like I expected.
The other big question: air quality. Anyone who’s seen kids dump a bucket of sand knows it doesn’t stay neatly contained. The Quinns planned for that with industrial air purifiers placed throughout the space, and they wet and sift the sand daily to keep dust levels down. I did notice a few sandy “clouds” rise up when a kid went for a dramatic offload, but they settled quickly, and the air never felt heavy or musty. The fact that the sand is silica-free also helps — there aren’t the contaminants you’d get from standard construction or playground sand.
Pro tip: Put younger kids in a snap onesie with pants over it. It limits how far the sand can travel, especially into diaper zones.
Order meets toddler logic: every toy out, all at once. (Image: Britt Thorson / Seattle’s Child)
Who It’s Best For
Ava had fun, but I could tell she’s still a little young to fully appreciate it. The kids who were really going for it were more in the 4–10 range, building elaborate structures, climbing on diggers, and inventing games.
That said, for toddlers, it’s still a neat sensory experience and a place to burn energy on a rainy morning. And for parents, the setup is smart: the whole place is one big open space, so you can see everything from anywhere. There’s free coffee, Wi-Fi, and a parents’ area with tables where you can hang out if your kid is old enough to play independently.
April told me that’s intentional: “We want parents to come [in the sand] and interact and engage, but we also get that some of the kids can play by themselves. Parents can grab a coffee, bring their laptop, answer their emails — and still keep an eye on your kid. No chasing around corners.”
From toddlers to grade-schoolers, kids (and parents) get in on the action. (Image: Britt Thorson / Seattle’s Child)
The Backstory
The Quinns dreamed up SandGarden last year during yet another soggy Northwest November. “We’d been to that third floor Bellevue Square play area so many times, I’m not going back there. I need something else.”
When he saw an indoor sandpit on TikTok, the idea stuck. They found a space, tore down walls themselves, poured in the sand, and here we are: Washington’s largest indoor sandbox.
Future plans include birthday parties in a party room named after their dog, Beau, plus classes and meetups: fossil digs, music times, and even parent meetups.
The parent zone: tables, Wi-Fi, and a front-row seat to the action. (Image: Britt Thorson / Seattle’s Child)
Bottom Line
By the end of our visit, Ava was sandy, tired, and happyish (not Sand Garden’s fault; she was demanding the singular snack that I didn’t pack her. I packed everything else). I was pleasantly surprised that the sand didn’t follow us home like glitter, and I left thinking this could be a solid winter survival spot. For toddlers, it’s about squishy toes and scooping. For older kids, it’s a full-blown adventure.
And for parents, it’s one more rainy-day option to add to the rotation — and that alone feels like a win.
The sandbox also doubles as a mini marketplace.(Image: Britt Thorson / Seattle’s Child)
Know Before You Go
- Address: 660 NW Gilman Blvd. Issaquah, WA
- Hours: Open daily, 9 a.m.–5 p.m.
- Admission: $22 per child (adults and babies under 1 are free)
- Waiver: Parents must sign a waiver for kids to play
- Rules: All shoes must be off before entering the sandboxes, all toys and sand need to stay in the box, no food/drink in the sandboxes, and outside toys are not allowed in.
- Wear: Loose-fitting clothing for parents and older kids, but I’d recommend tighter clothing for toddlers (snap onesies) and young kids to keep sand from getting to diaper zones.
Some of the products, services, or experiences mentioned in this article may have been provided at no cost or at a discount. However, all opinions expressed are solely those of the author and/or the Seattle’s Child editorial team. Our coverage remains independent, and we only feature things we genuinely believe will be of interest to our readers.
