Peter has dedicated fifty years of his life documenting over two hundred lava caves underneath an urban city in New Zealand.
| Directing | Gemma Duncan | Director |
| Production | Alexander Behse | Producer |
| Camera | Bevan Crothers | Director of Photography |
| Editing | Peter Roberts | Editor |
| Editing | Gonçalo Sá Correia | Editor |
| Sound | Carlos Espinoza | Sound Designer |