70000 Tons of Metal is a heavy metal festival staged aboard a Royal Caribbean cruise ship departing from Miami. The voyage features a diverse international lineup, including Brainstorm, Sinister, Abigail Williams, Melechesh, Naglfar, Ye Banished Privateers, Aether Realm, Die Apokalyptischen Reiter, and Uli Jon Roth. As a multi‑day ship-based event, it combines concerts with the cruise experience along the Caribbean.