Are there any waterproof plants in existence?

Yes, there are waterproof plants, often referred to as hydrophytes or aquatic plants. These plants, such as water lilies, lotus, and certain species of reeds, are adapted to thrive in waterlogged environments or fully submerged conditions. They possess specialized structures like air sacs or waxy coatings that help them float, access sunlight, and prevent waterlogging. Additionally, they have developed various adaptations to manage buoyancy and nutrient uptake in aquatic habitats.