Spending the past week at the Viceroy Anguilla in the Caribbean with baby Louis and other family – including her sister and brother-in-law – Bullock and her group took the time to get massages, drink tropical cocktails, play in the pool and even take a jaunt to a nearby private island.
The family had a blast, a source tells PEOPLE. "The group looked very festive at dinner, laughing and toasting over a long meal and Sandra in particular looked relaxed," says the source.
Bullock and her crew stayed in a private villa, but came out to swim in the resort's pool with Louis, with toys ready and waiting provided by the hotel. Bullock, 46, also emerged to watch the sun set – cocktail in hand – at the hotel's Sunset Lounge.
Some days, she made her way to the spa for a massage. On the day they travelled to a nearby private island, the group ate and swam in the ocean. For dinners, they hit local restaurant Coba on a few nights, a source tells PEOPLE.
Reporting by ALEXIS CHIU and LESLEY MESSER