An ocean drum is a fascinating percussion instrument designed to simulate the sound of ocean waves. It's typically a round, drum-like instrument with a frame that contains small beads or pellets. When you tilt or shake the drum, the beads roll over the drumhead, creating a soothing, wave-like sound that can be quite relaxing and meditative.
Ocean drums are often used in music therapy, meditation, and even in educational settings to teach about sound and rhythm. They come in various sizes and materials, so you can find one that fits your needs and preferences.