What materials could could you use when stranded on an island?

When stranded on an island, you could use natural materials such as wood for building shelters, leaves or palm fronds for roofing, and vines or strong grasses for binding structures. Rocks and stones can serve as tools or for starting fires, while bamboo can provide both building material and drinking containers. Additionally, fresh water sources, if available, are crucial for survival. Food sources like fruits, nuts, or fish also become essential materials for sustenance.