Facing Island in Gladstone Harbour offers a mix of reef and wreck diving at depths between 5 and 15 metres. This site is suited to intermediate divers due to moderate currents and exposure to open ocean conditions. The reef structure features hard and soft corals, including black coral trees. Divers should be aware of potential hazards including jellyfish, sharp coral, and strong currents, particularly on the exposed eastern side. Visibility is generally around 15 metres. The site is accessible only by boat, located 12 kilometres from the shore. Marine life in this habitat includes various reef fish and invertebrates typical of the region.

The eastern side of Curtis Island, located in Gladstone Harbour, is accessible primarily by boat. This site is subject to strong currents, which requires careful planning for both divers and snorkellers. Water temperatures at this location range from 20C in July to 28C during the summer months of January, February, and March. Given the current conditions, the site is better suited for experienced divers rather than beginners. Snorkelling is possible, though it receives a rating of 2/5 due to the challenging water movement. Visitors should be prepared for variable conditions throughout the year as they explore the marine environment of this coastal area.

Yellow Patch in Gladstone Harbour is a shallow seagrass site with a consistent depth of 4 metres. It serves as a sheltered anchorage, though tidal flow within the estuary can create currents. Visibility is typically 10 metres, providing clear conditions for observing the seagrass habitat. The site is accessible by boat and is suitable for beginners, though caution is advised regarding jellyfish and potential currents. Marine life in this region includes various reef fish and invertebrates that inhabit the seagrass beds. Always consult your boat operator regarding current conditions before entering the water, as these can change significantly.