Pool lounges and islands are primarily designed for use in swimming pools. While they may be used in lakes or the ocean, it is important to consider certain factors. These products are not specifically designed to withstand the natural elements found in lakes or the ocean, such as saltwater, waves, or strong currents. Additionally, they may not have the necessary buoyancy or stability required for these environments. It is recommended to check the manufacturer’s guidelines and consider purchasing products specifically designed for lake or ocean use to ensure safety and durability.