Campfire's Burning is a popular Campfire song and can be sung in a round.
It is sung to the tune of "London's Burning"
Campfires burning Campfires burning
Draw nearer Draw nearer
In the glowing In the glowing
Come sing and be merry
In a Round
Campfires Burning can be sung in a round, in your campfire create 2 groups, start one group singing then as they reach "Draw nearer" tell the other group to start from the start of the song.