Playground Mulch

I’m looking to build a little play set area for the kids in my backyard and don’t want to deal with mowing/upkeep around it. I’m going to build a perimeter with timbers and fill with mulch.

I’m trying to avoid rubber mulch for toxicity concerns so was going to do wood play mulch. Does anyone know of somewhere local to get it? Doesn’t look like the big box stores have anything besides rubber and standard mulch that would have the bark and other hard bits in there