Rob, Ruth, and Satomi begin their lives as troglodytes at Kaumana Caves.

Not much of the cave has vegetation growing, except at the end where the roof of the cave fell in and sunlight shines through.

The floor of this cave is smooth at times.

Light at the end of the tunnel.

This is how dark caves are....

Matt traverses the gnarly inner lava tubes.

Matt traverses the gnarly inner lava tubes.

Matt traverses the gnarly inner lava tubes.

Matt traverses the gnarly inner lava tubes.

Matt traverses the gnarly inner lava tubes.

Matt, Satomi, and Ruth at the Kaumana Cave entrance.

Dark cave pictures. Good thing Satomi had her cell phone with a built-in flashlight.

Matt, Satomi, and Ruth at the Kaumana Cave entrance.

Matt, Satomi, and Ruth at the Kaumana Cave entrance.

Matt, Satomi, and Ruth at the Kaumana Cave entrance.

Matt, Satomi, and Ruth at the Kaumana Cave entrance.

Kaumana Caves sign.

Warning sign for Kaumana caves. Just ignore and continue on.

Dark cave pictures. Good thing Satomi had her cell phone with a built-in flashlight.

A hole in the end of one of the Kaumana caves.

Satomi at the end of one of the Kaumana caves.

Ruth and Satmoi at the end of Kaumana caves.

Satomi and Matt at the end of one of the Kaumana caves.

Satomi and Matt at the end of one of the Kaumana caves.

Not much of the cave has vegetation growing, except at the end where the roof of the cave fell in and sunlight shines through.