I've read other posts about car break-ins but, thankfully, we've never had such an experience. Just park in areas that are well-lit at night or there are security guards/parking attendants around. We leave things in the trunk like towels, hats, sunscreen - basically things that won't hurt our feelings if they are stolen - but, again, we've never had a problem. Been to every beach on the island except the beach at Coralita.