Shallow Lagoon is a protected reef site in the Coral Sea, Australia, offering shallow depths between 1 and 5 metres. This site is suitable for beginner divers who require boat access to reach the location. Currents within the lagoon are typically mild, though stronger currents can occur in the channels connecting to the open ocean. Visibility varies significantly, ranging from 3 to 60 metres. Due to the remote nature of the site, it is located far from medical facilities. Divers should remain aware of local conditions and consult with their boat operator before entering the water, as currents can change quickly.

Nonki is a reef site in the Coral Sea featuring a pinnacle and a cavern section. This site is suited for advanced divers due to strong currents and the overhead environment of the cavern. Divers access the site by boat, which is located approximately 160 kilometres from shore. Visibility typically ranges from 15 to 30 metres. Water temperatures fluctuate between 25C and 29C throughout the year. Hazards include boat traffic, sharks, and strong currents that can shift with little warning. Divers should maintain good buoyancy control and stay close to the reef structure. Snorkelling is not recommended at this location.