Charlize Theron & Sean Penn Vacation in Cabo San Lucas, Mexico
02/18/2014 AT 01:45 PM EST
The couple continued their romantic Valentine's Day weekend – which began with drinks with friends at the Soho House in West Hollywood on Thursday – with a trip to Cabo San Lucas, Mexico, where they were photographed on Monday.
Theron, 38, kept it casual in a a printed dress with sunglasses while Penn, 53, wore a black T-shirt.
Not pictured? Theron's 2-year-old son, Jackson – whom Theron adopted in 2012. Her little boy was recently spotted goofing around with Penn during a grocery store outing.
According to a source, the couple stayed at the luxe Ventanas Al Paraiso resort in Cabo and kept a low-key profile, mostly staying in their ocean view villa with a private butler.
A trip to the beach is how it all began for the Oscar winners, who were first linked following a Hawaiian getaway in early January.