Grandmother and Grandfather Rocks (Hin Yai/Hin Ta)

Koh Samui’s Grandmother and Grandfather Rocks, also known as Hin Yai and Hin Ta, are natural rock formations located on Lamai Beach. These rocky outcrops have gained notoriety for their striking resemblance to male and female genitalia, often drawing curious visitors and prompting both comments and laughter. Set against a picturesque stretch of beach, the rocks create tranquil tide pools, offering a unique and serene environment for those who visit. Today, tourists can explore the area, enjoy the coastal scenery, and take in the geological curiosities that have made these formations a popular stop on the island.