A concept rendering for the Migaloo M5, a proposed "submersible superyacht," showing part of its additional fleet of vehicles.
Migaloo
- 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.