A sardine feeding frenzy is one of the world’s ecological wonders. It’s also one of the biggest turn-ons for obsessive anglers. “I’ve seen grown men tremble at the sight,” says Felipe Morales, my host and captain, as he guns our boat through a glassy expanse of the Pacific toward an eruption of frothy white water on the horizon. Within minutes we’re on top of the chaos. Red- and blue-footed boobies relentlessly dive-bomb the surface. Spotted dolphins torpedo through the water. And hordes of massive tuna leap through the air, their hungry mouths agape. Before the boat has even slowed, my guide Jairo Zuñiga rushes toward the bow, spinning rod in hand, and catapults a popper directly into the action. The neon-pink lure barely splashes the surface before a silver flash gobbles it—yanking the line taught—and the battle begins. It’s late March, and I’ve arrived in Bahía Solano, an under-the-radar fishing paradise on Colombia’s..