Simar Nature Reserve is an oasis amongst a valley of agricultural landscape. The reserve takes its name from the sharp rush (Is-Simar in Maltese) which is regenerating throughout the reserve. The wetlands provide a safe haven for both resident and migrating birds.

Made up of a mosaic of habitats including open pools, reedbed, and trees, Simar is teeming with wildlife. The pools are attractive to aquatic birds like herons, rails and kingfishers, but also provide a home for the rare and protected Mediterranean Killifish and species of rare tassel-weed. Simar is a fully protected bird sanctuary, a Ramsar site, and a Special Area of Conservation within the EU Natura 2000 network.