St. Paul's Cathedral in Mdina, Malta, is a magnificent historical and architectural landmark, easily accessible on foot within the walled city; while generally accessible, some areas might have steps, but the main floor is usually fine. Visitors can explore independently at their own pace, perhaps with an optional audio guide, or join a local walking tour of Mdina that includes the cathedral. It is typically open year-round, though it's advisable to check current opening hours, especially around religious holidays. Expect an approximate entrance fee of €5-€10, which often includes access to the adjacent Mdina Cathedral Museum, and plan for a visit duration of 1 to 2 hours to fully appreciate its grandeur and historical significance.