Mermaid Grotto is a pale mint green nail polish with a glazed blue shimmer and delicate holographic sparkle. Our shimmer polishes are packed with glimmering pigments which give them a unique multidimensional finish, unlike any other. The land along the Wailua River is one of Kaua’i’s most sacred areas. Follow the river to a fork and you’ll find a fern-covered lava rock cave, known as Fern Grotto, which used to be only accessible to Hawai’ian royalty (‘ali’I’). There’s definitely something magical about this grotto – the plants grow upside down!