This is a fantastic free choice activity that allows children to explore the world and work on many different skills such as motor, language, social as well as covers some science and mathematical concepts. The material this activity requires is a large tub, play sand, water, blue food dye, plastic ocean animals, seashells, small pieces of driftwood, some stones, and fine motor tools. Through this activity, children learn about ocean habitats. Simultaneously, they can do some digging while playing with water. Therefore, the activity allows children to enjoy along with some knowledge.