Thinking of vacationing in Costa Rica with kids? Consider Esterillos Este. When we decided to plan a trip to Costa Rica with our 3 children, all our research led to this wonderful destination. It is a small (very small) beach town on the Pacific coast of Costa Rica in the Puntarenas province. To the north is Jaco and Playa Hermosa. To the south is Quepos and Manuel Antonio National Park.