Ahöy: Anthrax and Motörhead Rock the Motörboat

Scott Ian of Anthrax onstage during his band's set.

Anthrax's second show.

Charlie Benante of Anthrax plays blackjack at the boat's casino.

Wilson, the one dressed up as a leprechaun, host the self-explanatory "beer & bingo" event.

David Ellefson and Chris Broderick of Megadeth judge the cruise's gnarly belly-flop competition. Per the official rules: "Creativity is valued over technique here so beginner to expert floppers are welcome."

Anything can happen in the Motörhead hot tub.

Yoga break! A few cruise-goers find some to recenter – Lemmy is not one of them.

Danko Jones rep Canada with a roaring set.

David Ellefson signs copies of his new book, My Life With Deth.

Down perform, finding something worth screaming about amid the blue skies and fake palm trees.

Fireball Ministry perform.

Besides performing with his Jim Breuer Band, the comedian hosted a Q&A with a number of Motörboat artists.

Kill Devil Hill performs. Don't mess with these guys.

The Motor crew sit down for a meet and greet.

David Ellfeson (Megadeth), Rex Brown (Kill Devil Hill), Frank Bello (Anthrax) and Chuck Billy (Testament) perform as Metal Allegiance on the MotörBoat Deck Stage.

Phil Campbell and Lemmy Kilmister bump fists during their second performance at the boat's Blue Sapphire Theatre.

At last, Motörhead performs.

Motörhead's set list.

Joey Belladonna and Frank Bello of Anthrax join a Mexican Mariachi band in Cozumel.

Zakk Wylde slows it down with in acoustic performance on the boat's deck.