And after this, I promise not to bore you any more with dive lore. Here’s a brief video clip shot during our trip to Utila last month.

The island is best known for being on the migration path of whale sharks (the largest fish in the ocean). We were told when we arrived that the odds of seeing one were extremely low - wrong time of year, water a bit too cold, and other factors. That was fine - we had good whale shark footage from Belize last spring, and didn’t really need any more.

One day around noon, returning from our second dive, our boat captain suddenly swerved out to sea. He had spotted a “boil” in the distance - a patch of water seething with small fish, rising to the surface in thousands to escape something. As we approached the boil, he told us quietly to have our snorkels and fins ready, and to be prepared to go over the side quickly. He pointed the boat at what seemed to be an open slit in the ocean, cut the motor, and we drifted towards a big grey shape.

Then…well, watch the clip.