Desert Inland Sea (Khor Al Adaid) - 1.25 riyal

Issued in 1974 as part of Qatar's definitive series showcasing national landmarks and natural features, this stamp commemorates Khor Al Adaid, commonly known as the Inland Sea. The design depicts the spectacular meeting of desert dunes and turquoise waters, one of Qatar's most distinctive natural landscapes. Located in the southeastern part of the country, Khor Al Adaid is a rare geographical phenomenon where the waters of the Arabian Gulf penetrate deep into the desert, creating a unique ecosystem of marine and desert environments.

By featuring the Inland Sea, the State of Qatar highlighted one of its most remarkable natural treasures. The issue celebrated the country's environmental heritage and promoted appreciation of Qatar's unique landscapes, emphasizing the importance of conserving natural habitats that contribute to the nation's ecological and cultural identity.