The Marine Sports Underwater Viewer is a great way to see under water without getting wet. Great for kayaks, boats, and the beach, this underwater viewing window eliminates the guesswork of what's below. Use it to spot schools of fish, search for lobster and scallop, or just explore and discover. Excellent for children and adults alike, the easy-to-use Marine Sports Underwater Viewer takes the viewing power you've only dreamed about and turns it into reality.