Yes, sharks are a vital and common part of the Great Barrier Reef ecosystem, with over 130 species found in these waters. The most frequently sighted are "reef sharks," specifically the Whitetip, Blacktip, and Grey Reef sharks. These species are generally timid and not considered a threat to divers or snorkelers, often resting on the sandy bottom during the day. However, larger apex predators like Tiger sharks and Bull sharks also inhabit the deeper channels and outer reef areas. While sightings of these larger species are rarer for tourists, they play a crucial role as keystone predators. In 2026, conservation efforts have successfully stabilized reef shark populations, and they are seen as a sign of a healthy reef. Shark attacks remain statistically extremely rare, but tour operators always advise following safety protocols, such as avoiding swimming at dusk or in murky water.