The parents may take their children outdoors to view God in nature. They can be pointed to the blooming flowers and the opening buds, the lofty trees and beautiful spires of grass, and taught that God made all these in six days and rested on the seventh day and hallowed it. LASW 148.3
We are not to teach our children that they must not be happy on the Sabbath, that it is wrong to walk out-of-doors. Oh, no. Christ led His disciples out by the lakeside on the Sabbath day and taught them. His sermons on the Sabbath were not always preached within enclosed walls. 7Child Guidance, 533, 534. LASW 148.4