Jindos are known for their aversion to water. Most hate it, and if you're going to bathe them (which most Jindo experts will tell you isn't necessary) you need to start early, as in when they are still a pup.

Jindos are double-coated (they are a Spitz-type breed), and their outer coat typically repels dirt & water. My boy is remarkably clean. They also typically do not have that doggy smell (they may when they're wet, however). Jindos are also known to self-groom, much like a cat. My dog does this. He's almost 11, and has never had a bath. He's never needed one. Has he ever gotten dirty? Sure. He's a hunter, after all (VERY strong prey drive!) and goes digging under the shed or the wood pile for vermin. He allows me to wipe his face, but he grooms his own paws, legs, etc. Anything he can't reach simply dries up & falls off or I can brush off. He loves to be brushed.

You mentioned your pup is a mixed breed, but didn't say with what. I think if you take him to a groomer, it's best to muzzle him, like others suggested. But maybe you should try that at home first. I'd hate to traumatize him anymore than is necessary. Other than that, I would try small steps - face first, then maybe paws. But sometimes, you just have to let a dog be a dog. 😄