Looks like you can get one from kickstarter for $499.
Check out the videos on kickstarter, thing moves around pretty fast!
https://www.kickstarter.com/projects/1359605477/fathom-one-the-affordable-modular-hd-underwater-dr
Fathom
Check out the videos on kickstarter, thing moves around pretty fast!
https://www.kickstarter.com/projects/1359605477/fathom-one-the-affordable-modular-hd-underwater-dr
Fathom