Chilli Beach in Lockhart River offers a shallow reef environment with depths ranging from 2 to 15 metres, averaging 8 metres. Accessible via shore entry, the site is located 500 metres from the coastline. Conditions include mild currents and visibility between 10 and 20 metres. Water temperatures fluctuate between 25C and 29C throughout the year. Species recorded around this area include crabs and snails. Entering the water is extremely hazardous due to the presence of saltwater crocodiles, rip currents, sharks, sharp coral, and stonefish. Dangerous marine stingers, including Box Jellyfish and Irukandji, are also present, particularly during warmer months. Swimming and snorkelling are not recommended.

Portland Roads is a sheltered bay near Lockhart River that serves as a protected anchorage. This shore dive offers a shallow reef environment with depths ranging from 1 to 5 metres, averaging 2 metres. Conditions are generally relaxed with mild currents and visibility varying between 5 and 30 metres. The site is suitable for beginners. Facilities available at the location include a cafe and toilets. Divers and snorkellers should be aware of the presence of crocodiles in the area and exercise caution regarding box jellyfish, which pose a significant risk between November and May.