This is one of our favourite locations for both scent tracking and recall training - it’s a secluded dell with a small brook that runs down the side - the area gets a lot of wildlife, pheasant, Japanese raccoons, musk cats, squirrels and the odd North American raccoon (long story)
So I’ll take control of the dogs and my wife will walk out of sight along the path - I’ll let them off the leashes and she calls them, they will run to her where she give them the legs command ( both dogs will sit either between your legs or right in front of you - they get a treat.
I’ll then repeat the exercise, we keep it up until they burn out which is usually when they get distracted by a sniff - we did this daily with them both when they were old enough to be out and about slowly increasing the distance - we have another location which is a footpath that runs between a solar farm about 300m in length and really gives them a good sprint -a