Nicaragua's Parque de Aventura Las Nubes is located within 10 minutes of the beach town San Juan del Sur. The preserve is home to wild cats, anteaters, armadillos, and sloths. You can take a short nature hike in the park or opt for an adrenaline-filled zip line tour. With one arm wrapped tightly around my three-year-old daughter and the other gripping the dashboard rail, I braced myself as we navigated hairpin turns and ascents. But the wild ride was part of the magic. Overhead, territorial howler monkeys announced our presence, toucans flashed in and out of the canopy, and the electric hum of cicadas filled the air. Every so often, our guide would spot something—a sloth curled into a high-up branch, or a baby howler trailing its mother—and we’d hop out to follow his laser pointer through the trees, briefly trading thrills for quiet awe.…