Yanbu is a Saudi Red Sea diving hub for guided reefs, the Seven Sisters and the Iona wreck, with local PADI and SSI centers serving both experienced divers and trainees. October 2026 operator schedules confirm actual day-boat routes; Saudi Master also lists Yanbu-port seven-night departures, making the wider booking reality hybrid rather than only day trips. The visitor guide remains geographically focused on Yanbu-based reef outings, not Jeddah or Umlajj sightseeing and dive sites. Snorkelers can pursue designated Yanbu Beach access or operator-led trips. Dedicated freediving is a training lead, not a confirmed regular departure. Cooler-season travel is generally easier, but offshore conditions, permits, water quality, certifications and medical evacuation must be checked for the exact day.