Beauty of Hawaiʻi on Instagram: "A circle rainbow, also known as a glory or full-circle rainbow, is a rare optical phenomenon sometimes visible along the Nā Pali Coast in Kauai, Hawaii. This stunning coastline, known for its dramatic cliffs, lush valleys, and ocean mist, provides ideal conditions for witnessing these extraordinary rainbows. What Causes a Circle Rainbow? Unlike typical semicircular rainbows, a full-circle rainbow requires specific conditions: 1. High Sun Position – The sun must b