The offshore islands and reefs near Nhulunbuy provide shallow, boat-accessible diving suitable for beginners. These sites feature reef environments where divers can encounter parrotfish, coral trout, clownfish, eels, mullet, and sea turtles. Water temperatures range from 26C to 30C throughout the year. Conditions are most settled during the dry season, which offers the best visibility. Divers should remain aware of boat traffic on the surface and follow local guides, as currents can be unpredictable. Guided tours are available, and equipment rental can be arranged locally. Night diving is also possible at these locations.

Western Cove in Nhulunbuy provides a protected reef environment suitable for beginners. Accessible only by boat, this site features shallow, calm waters and mild currents that allow for relaxed exploration. Water temperatures remain warm throughout the year, ranging from 26C to 30C. Divers and snorkellers should be aware of potential hazards including boat traffic, crocodiles, sharks, and strong currents in certain conditions. Visitors are advised to shuffle their feet in shallow areas to avoid stingrays. On-site facilities include parking and a rinse station, and equipment rental is available. Booking a guided tour is recommended for first-time visitors to navigate local conditions and visibility effectively.

Wirrwawuy, located near Nhulunbuy, is a shore dive offering access to shallow, calm waters. The site is suited for intermediate divers who prefer slow, observant dives to spot local marine life. Visibility is variable and influenced by tidal movement, making slack water the optimal time for clearer conditions. Parking is available at the site. Divers must maintain high situational awareness due to significant environmental hazards, including the year-round presence of saltwater crocodiles and seasonal box jellyfish. Protective clothing is recommended during the wet season. Always check local advisories before entering the water and avoid diving at dusk or dawn.

Dhamitjinya, also known as East Woody Island, is a shore-accessible reef site located near Nhulunbuy. This shallow environment is suitable for beginners, allowing for direct entry from the shore without a boat. The site features a reef habitat typical of tropical waters, supporting a variety of reef fish and invertebrates. Divers and snorkellers should note that currents can reach moderate levels and visibility is subject to tidal and weather changes. Saltwater crocodiles are present in the region, and jellyfish, including box jellyfish, are a known hazard. Visitors are advised to check local conditions and jellyfish activity before entering the water, and wearing a full-length stinger suit is recommended.

Lonely Beach, or Ŋalarrk, is a shallow shore entry site located near Nhulunbuy. This site is suitable for beginners and snorkellers, offering mild currents and gentle waves. The habitat supports a variety of reef fish and invertebrates typical of the Arnhem Land region. Facilities at the site include parking and showers. Visitors should be aware of significant hazards, including the potential presence of crocodiles, sharks, and jellyfish. It is strongly recommended to snorkel only under the supervision and guidance of local Yolŋu hosts. Visibility can shift significantly, so checking local conditions before entry is advised. Night snorkelling is possible, with bioluminescent plankton occasionally visible in the shallows.

Strath Island, located off Nhulunbuy, offers boat-based reef diving in the Northern Territory. The site features coral formations and is suited for intermediate divers capable of managing moderate currents. Water temperatures range from 26C to 30C throughout the year. Divers should be aware of significant hazards, including saltwater crocodiles, sharks, and sharp coral. Jellyfish, including Irukandji and Box Jellyfish, present a risk, particularly during the stinger season from November to May. Due to variable currents and wildlife activity, local operators should be consulted before planning a dive. The site is not recommended for snorkelling.

Little Bondi in Nhulunbuy is a shore-entry reef site suitable for beginners. The area is a popular surfing beach, which indicates the presence of waves and potential surge. Divers and snorkellers should be aware of moderate currents and rip currents. Water temperatures range from 25C to 30C, with the dry season from April to November offering the most favourable conditions. Marine life in this region includes various reef fish and invertebrates typical of the habitat. Hazards include crocodiles year-round and jellyfish, particularly during the wet season. A full-length stinger suit is strongly recommended for all water activities. Toilets are available at the site.

Garanhan, also known as Macassan Beach, is a shore-accessible reef site located near Nhulunbuy. This location is suited for intermediate divers due to the presence of strong currents, which require careful planning around tidal movements and slack water. The site features natural sand terrain and is remote, necessitating a 4WD vehicle for access. Water temperatures remain warm throughout the year, ranging from 25C to 30C. Visitors must remain vigilant regarding local hazards, including the presence of saltwater crocodiles, jellyfish, and strong currents. Facilities at the beach include parking and toilets.