Al Hasa, however you want it.

Al Hasa, also known as Al-Ahsa or Al-Hasa, is a region rich in history and cultural heritage, located in the Eastern Province of the Kingdom of Saudi Arabia. Covering an area of approximately 85,000 square kilometers, Al Hasa is the largest oasis in the world, boasting a unique combination of natural beauty, historical significance, and modern development. Geographically, Al Hasa is characterized by its fertile lands, extensive palm groves, and natural springs. The region is surrounded by vast deserts, including the Rub' al Khali (Empty Quarter) to the south and the Dahna Desert to the north. The region's climate is predominantly arid, with hot summers and mild winters. However, the presence of underground water reserves and natural springs has allowed for the growth of lush greenery and agricultural prosperity. Al Hasa is home to several notable landmarks, including the iconic Qasr Ibrahim, a historical fortress built during the Ottoman Empire's rule in the 16th century. Another significant historical site is the Al-Ahsa National Museum, which showcases the region's rich cultural heritage and history, dating back to ancient civilizations that once thrived in the area.