[[File:Kelp-forest-Monterey.jpg|thumb|right|220px|Kelp forest in Monterey, Californiajj
Kelp is a type of marine seaweed. It is a brown algae. There are many different kinds of kelp. Kelp grow in large forests, usually near the surface of the water. It grows in nutrient rich saltwater. Some kelps grow very fast (up to 30 cm a day). Kelp can reach a length of up to 60 m. The blades are kept afloat by gas-filled bladders.
Kelp is found in many places. People put it in aquariums. In the Monterey Aquarium there is a large forest of kelp.
- "Kelp Benefits: Boost Your Health with Seaweed". Healthline. Retrieved 2020-03-05.