A promotional concept rendering for the proposed submersible superyacht the Migaloo M5, showing it partially submerged in dim light with a helicopter flying above.
A concept rendering for the Migaloo M5, a proposed "submersible superyacht," showing part of its additional fleet of vehicles.
  • Austria's Migaloo is offering to build a private "submersible superyacht" for the ultrarich.
  • It says the M5 would be able to travel 820 feet underwater and stay submerged for a month.
  • Despite the high up-front cost, CEO Christian Gumpold says the firm is in talks with buyers.

Forget megayachts. Forget billionaire basements. If you're unfathomably rich and want a new toy, there's an Austrian company that says it will build you a fully submersible yacht.

And this is no rickety Titan submersible.