RIYADH: Saudi Arabia and Greece have agreed to strengthen ties through tourism and travel facilitation between the two countries. On the sidelines of the Tourism Recovery Summit in Riyadh, Saudi Tourism Minister Ahmed Al-Khateeb and his Greek counterpart Harry Theoharis signed a joint action plan in recognition of the importance of tourism to the economic development of both states. The plan was prepared with the aim of strengthening cooperation between the Kingdom and Greece. They stressed the importance of establishing mechanisms for mutual use of vaccination certificates, in order to promote safe and smooth travel.