Marlins vs Bait Ball

Magdalena Bay, Baja California Sur, Mexico


We set out on the boat that morning, a thick fog cloaking San Carlos as we pulled away from shore. The air was crisp, and we were bundled in jackets—the kind of cold that makes you feel alive. We passed through Magdalena Bay, its still waters giving way to the vastness of the open Pacific Ocean. For about an hour and a half, we rode out into the blue, scanning the horizon for frigatebirds and pelicans diving from above—a sign that something was happening below the surface. When birds gather like that, it usually means a bait ball is near, and where there’s a bait ball, there’s often something more.

After a few hours of searching, we found one.

Carefully, we slipped into the water and began swimming toward it. Just below us, the marlin circled. One by one, they took turns charging the bait ball. Before each strike, a marlin’s silvery-blue stripes would flash to a vivid, electric blue—signaling to the others that it was going in, a warning to avoid a chaotic collision. (Their ability to change color this way is well-documented, a fascinating display of biology and communication.)

We watched as they worked together, keeping the bait tightly packed and near the surface. Sometimes they didn’t even strike—they simply used their presence to herd the fish, guiding the ball where they wanted it to go. And as we floated above, we had to be aware of our position. The bait ball, sensing we posed no threat, often tried to take shelter near us, using our bodies as cover from the hunters.

We stayed with them for nearly an hour, suspended at the surface in awe. The marlin moved with such purpose, precision, and grace—it felt like watching a choreographed dance unfold just beneath the waves.

Time disappeared. When I finally climbed back onto the boat, fingers pruned and SD card full, I sat in silence, trying to absorb what I’d just experienced. It was one of those moments that imprints itself in your memory—not just for the images I captured, but for the quiet magic of witnessing the wild in perfect motion.

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Magnificent Megafauna