Vatoz Dalış Merkezi (Vatoz Diving Center) is a diving school and commercial diving company based in Şirinyalı, Körfez (Kocaeli), Turkey. Its own training dive site is at Hereke-Şirinyalı, about 30 minutes from Istanbul, an area known for its rich marine life. The facility covers 110 m² indoors and 130 m² outdoors and is fully equipped with diving gear; training is held privately in a quiet setting, with theory classes given online or in a classroom, and tank and equipment support provided. After training, students are added to WhatsApp and YouTube groups for ongoing support. Course programs listed on the site include Open Water, Advanced Open Water, Enriched Air, Night Diver, Dry Suit and EFR, an Advanced Rebreather Poseidon Se7en course, and TSSF star-diver programs (One Star, Two Star and Three Star Diver, plus specialties). Beyond recreational and technical training, Vatoz also carries out commercial/industrial diving work, holding an underwater survey authorization certificate, a port-authority equipment inspection certificate, and a seaworthiness certificate for its own dive boat, guided by its stated values of safety, respect, integrity and innovation.