If you have somewhere you're comfortable cycling with them, stick them in a bike trailer and pull them around behind you. My son just zones out for an hour or

If you have somewhere you're comfortable cycling with them, stick them in a bike trailer and pull them around behind you. My son just zones out for an hour or more when I do this with him. We're together of course, but I also have most of the feeling of freedom and solitude that cycling gives me, and he generally has a great time.