As I posted before we will be having a rental car and drive around from SJ to Arenal to Monteverde and to Playa Hermosa. While we're at the beach for 3 days/nights I'd like to go to Playas del Coco one or two nights and enjoy a little nightlife. Is it dangerous to drive back at night. Should we find another form of transportation? We will have a designated driver so that won't be a problem. Thanks in advance for your answers.