Forte dos Reis Magos Reefs in Natal, Brazil, provide an urban underwater environment situated around a historic star-shaped fort. The site features reefs at depths ranging from 2 to 16 metres, with an average depth of 5 metres. Access is via the shore, and the area is suitable for beginners. Conditions vary, with visibility between 5 and 25 metres and mild currents. Divers and snorkellers should be aware of hazards including boat traffic, sharp coral, and surf. The site is accessible for night diving, and a cafe is available for visitors. Snorkelling is best attempted at dead low tide when the water near the fort's walkway is calmest.

Tartaruguinha is a reef site located 12 kilometres off the coast of Natal, Brazil. Accessible only by boat, the site features a reef structure situated at depths between 18 and 20 metres. Divers can expect mild currents and visibility ranging from 10 to 30 metres. The water temperature remains consistent throughout the year, typically between 27 and 29 degrees Celsius. Due to the presence of sharks, guided tours are strongly recommended for all divers. The site is suitable for beginner divers, though careful attention to safety briefings is required given the local conditions.

Serigado de Fora, located off the coast of Natal, features a combination of natural reef structures and an artificial reef. Divers can expect depths ranging from 24 to 30 metres, with an average depth of 27 metres. Conditions include mild currents and visibility between 10 and 25 metres. Water temperatures remain warm, typically between 27 and 29 degrees Celsius. The site is accessed from the shore, where surge can be a factor; observing the water for a lull in the swell before entry is recommended. Guided tours are available to assist with navigating the most sheltered entry lines and the reef structures.

Parrachos de Maracajaú is a coral reef system located 7 kilometres offshore from Natal. The site is characterised by shallow depths ranging from 1 to 3 metres, with an average depth of 2 metres, making it highly suitable for snorkelling. Divers and snorkellers access the reef via boat, often utilising floating platforms as a base for their activities. Visibility at the site varies between 10 and 25 metres, and water temperatures remain warm throughout the year, between 27 and 29 degrees Celsius. Currents are generally mild. Facilities at the site include a cafe and a rinse station. Be aware of sea urchins when navigating the reef.

Pirangi is a reef site located 800 metres off the coast of Ponta Negra and Pirangi, Brazil. Suitable for beginners, the site features depths ranging from 12 to 16 metres with an average of 14 metres. Divers access the reef via boat, which is required due to the distance from shore. Visibility varies between 10 and 30 metres, and water temperatures remain warm throughout the year, typically between 27 and 29 degrees Celsius. A moderate current is common, and divers should maintain good buoyancy control to avoid sharp coral. Be aware of boat traffic on the surface and follow local guides to navigate the reef safely.

Parrachos de Pirangi is a reef system located 1000 metres offshore between Ponta Negra and Pirangi. These reefs form natural pools with an average depth of 2 metres, ranging from 1 to 5 metres. Accessible only by boat, the site offers a mild current and visibility between 5 and 10 metres. The environment supports a variety of reef fish and invertebrates typical of the region. Snorkellers should be aware of sharp coral throughout the area. A cafe is available for visitors. The site is suitable for beginners, with a typical excursion lasting 90 minutes.

Barrerinha is a reef site located off the coast between Ponta Negra and Pirangi, Brazil. Accessible only by boat, the site sits 12 kilometres from the shore. Divers typically explore depths between 15 and 18 metres, with an average depth of 16 metres, though the reef structure extends to 30 metres. Conditions are generally comfortable with mild currents and water temperatures ranging from 27 to 29 degrees Celsius. Visibility is variable, fluctuating between 10 and 30 metres depending on recent weather and sea states. This site is suitable for beginner divers, though careful monitoring of depth gauges is advised to remain within training limits during the typical 45-minute dive.

Barra de Tabatinga is a reef site located between Ponta Negra and Pirangi, Brazil. This shore-entry location features rocky pools accessible at low tide and a deeper channel. Divers and snorkellers can expect depths ranging from 1 to 8 metres, with an average depth of 4 metres. Conditions include mild currents and visibility between 5 and 15 metres. The site is suitable for intermediate skill levels, with typical dives lasting 45 minutes. Water temperatures remain consistent throughout the year, ranging from 27C to 29C. Visitors should be aware of surf conditions. Facilities at the site include parking and toilets.