When night falls over Keauhou Bay, the ocean takes on a quiet glow — a shimmer of light and life just below the surface. The floodlights from boats and shore draw in countless specks of plankton, and soon after, the true stars of the evening arrive: graceful manta rays, gliding in slow, hypnotic loops. If you’ve ever been lucky enough to join a manta snorkel here, you know the feeling — that surreal mix of calm and awe as these gentle giants pass within inches of you. The man