The harness is easy to get on herself, although it felt odd over the thermal wetsuit, and when Ben checks only one of the straps needs a little extra tightening. The Go-Pro gets strapped on next and then Sadie is ready to attach herself and get in the water.

"Hopefully those two times will be all it takes, but we've allowed for a total of four dives today. If we don't get anything in those four then we'll have to try again at a later date."

She goes and stands next to the line, "I'm ready, let's do this!"