Justin Bieber and his wife are checking out of the madness in America — temporarily, at least — with a trip down Mexico way, and it’s a true family affair.

Hailey Bieber and her man soaked up the rays off Cabo San Lucas … doing a little snorkeling and hanging out on the deck of a yacht.

They were both smiling ear-to-ear as they hugged and cuddled up Wednesday … and their pup, Oscar, was there too. We’re guessing he passed on the snorkeling, though! Lots o’ sharks down there.

The quick trip is a super mini vacay for the couple, because Justin’s actually in the middle of his world tour.

Shortly after these pics were taken, he jetted off to Mexico City … where he performed last night, and has another show Thursday night.