Walking through the Lava River Cave we found a section with rich sounding reverb. This is a little bit from Faure's Requiem mass.
Here's a translation from a site called jamescsliu.com/classical/Faure_Requiem.html:
Free me, Lord,
from eternal death,
on that day of dread,
when the heavens and earth shall move,
when you shall come to judge the world by fire.
More about this cave @ en.wikipedia.org/wiki/Lava_River_Cave