Kaua'i's waterfalls are a year-round display of nature's ability to keep the Garden Isle green and vibrant. In Lihu'e, one can drive right up to picturesque Wailua Falls. If the 80-foot waterfalls look vaguely familiar, In scenic Wailua, Opaeka'a Falls is the island's most accessible major waterfall as it cascades into a hidden pool. And it's a wonderful setting to take photos. Opaeka'a means "rolling shrimp," which were once abundant in the stream.