In Mt. Komorebi there are a few trails with boards that allow you to hike. I’m wondering if you’re in the right place because there are other signs throughout the world. The snowy neighborhood trail head is located near the small rock climbing walls. Pass the bunny slope on your right, then continue a bit and you’ll be close. There are also at least 2 signs in the neighborhood in the upper left of the world. There are no trails in the lower neighborhood where the swimmable water is.
I believe treat recipes are learned as soon as your sim has the treat in their personal inventory. You can buy friendly treats in the downtown area from either street vendor, if I’m not mistaken.
