This beach has next level beauty. The Pacific has an emerald hue here. It gets very busy however, as it is attached to the most popular National Park in Costa Rica. My advice would be to go early and before your tour of the National Park to avoid the crowds. I visited here after the tour, and as the park rangers police this beach, they very forcefully make sure you are on your way home by 4pm. They blow their whistles loudly and continuously, which is kind of annoying. It does not take away from the stunning unspoiled natural beauty of this place. There is no plastic allowed on entry which is great, so you will be relieved of your plastic water bottle should you have one. They allowed me to bring my snorkelling gear in thankfully. The water is lovely and clear, so there is fish to see, but I ran out of time to really make the most out of that, due to that 4pm cut off. The sand is lovely and soft with a tint of black in there. There are also rinsing facilities and toilets behind the beach. The black iguanas co-exist side by side with people on this beach, that it becomes the norm after a while. Be careful of the many capuchin monkeys who will appear out of the rainforest, and are determined to steal your small items if given the chance.