Netanya itself is divided into a large number of neighborhoods (see Neighborhoods of Netanya), recently growing southwards out of the city to create a number of high-end coastal neighborhoods with industrial areas inland. Netanya is home to the Poleg nature reserve and the Irises Dora Rainpool nature park containing the world's largest population of iris atropurpurea. At the center of the park is a rainpool which fills up with water in the winter months, and dries up over the summer months. Signs along the rainpool include information on the types of flora and fauna which populate the ecosystem.