The great outdoors is made great by our own perception of it, which means that it can be anywhere, not just a grand or majestic space. Or as this country-pop style song says, "As long as it's outdoors, got no ceilings or floors, it's the great outdoors to me!" It's the being outdoors that makes it great.
The song is positive, upbeat, and downright lively. It's unison, so it's easy to learn and sing. It's also easy to add the (optional) claps, which bring even more energy to the performance. (from Music K-8, Vol. 30, No. 3)