Nature rules in Costa Rica. Go whitewater rafting, visit a sloth sanctuary, or trek through the Veragua rainforest when Holland America Line cruises to Puerto Limon outside San Jose. From Puerto Caldera — the port city for Puntarenas — you can get a bird’s-eye view of the cloud forest canopy, take a mangrove river cruise, or head to a coffee cooperative in the lush Naranjo highlands. Quepos is your gateway for adventures in Manuel Antonio, crown jewel of Costa Rica’s vast national park system.