Al Jassasiya is open to visitors 9am–3pm, Sunday–Thursday, with precautionary measuresin place.
Rock carvings, known as petroglyphs, can be found along the coast of Qatar as well as on Bahrain's nearby Al Hawar Island. Al Jassasiya is arguably the most impressive of the dozen rock-carving sites in Qatar.
The site was first discovered in 1957 and then thoroughly studied in 1974, when 874 carved limestone single figures and compositions were catalogued. They consist mainly of cup marks in various arrangements, including rows, rosettes and stars, but also of carvings such as boats, footprints and enigmatic symbols and signs. It is believed the cup marks were used for playing ancient board games, such as mancala, known as Al Haloosa or Al Huwaila in Qatar.