This morning, we visited Caletas-Ario Mixed Wildlife Refuge, which is part of a buffer zone next to Corcovado National Park. Some guests decided to walk along the trails that flank a spectacularly pristine beach. Others preferred to enjoy their surroundings from the comfort of a beach chair under the shade of a giant mango tree. In the late afternoon, National Geographic Quest set sail to visit the perimeter of Caño Island. We enjoyed a beautiful sunset and spotted a mother humpback whale and her calf playing in the water. This area is one of the ten most important places in the world for whale-watching in both hemispheres.