Notes from our in-house marine biologist: It's possible to see huge schools of snappers, jacks, sea lions, schools of mobulas (in-season), white tip reef sharks, and a variety of eels, octopus, lobster and even sea horses in the Cabo San Lucas Marine Park. Diving out at the Corridor is a more tranquil experience and you might see eagle rays, schools of machete, cortez grunts, eels, and much more.