The Blue Hole is a natural circular reef formation located 250 metres offshore from Pemba Island. This site features a shallow reef flat surrounding a central depression that reaches depths of 5 to 12 metres, with an average depth of 8 metres. The sheltered environment provides visibility ranging from 20 to 40 metres and mild currents, making it suitable for beginners and snorkellers. Divers can access the site by boat or from the shore. Hazards at this location include jellyfish, sea urchins, and sharp coral. Guided tours and air fills are available through local facilities.

Scorpions Secret is a gently sloping reef located 120 metres from the shore of Pemba Island. This site is suitable for beginners, offering depths between 5 and 18 metres and mild currents that make navigation straightforward. Access is by boat only. The reef environment features sharp coral formations, and divers should be aware of the presence of lionfish. Night diving is permitted at this location. With a snorkel rating of 3 out of 5, the site provides accessible conditions for those exploring the reef. Water temperatures typically range from 26C to 29C throughout the year.

Shimba Hills is an underwater valley located off Pemba Island, Tanzania, characterised by gently sloping coral hills. The site is suitable for both diving and snorkelling, with depths ranging from 12 to 22 metres and an average depth of 12 metres. Conditions are generally calm with mild currents, and visibility typically fluctuates between 10 and 30 metres. Access to the site is by boat only. Water temperatures remain warm throughout the year, ranging from 26C to 29C. It is a well-suited location for beginners looking for a relaxed experience.

Lighthouse is a marine dive site located off Pemba Island, Tanzania. Divers can expect depths ranging from 12 to 20 metres. Visibility at the site varies between 10 and 30 metres, with water temperatures fluctuating from 26C to 29C throughout the year. Species recorded around this area include wrasses, various anemonefish, scorpionfish, and butterflyfish, alongside invertebrates such as snails, sea cucumbers, and brittle stars. The site is suitable for divers seeking moderate depths in a tropical marine environment.

Vumawimbi Beach Reef, located on the east side of the Kigomasha Peninsula on Pemba Island, offers accessible shore-entry snorkelling. The site is best suited for beginners, with the reef located at the northern end of the beach. Depths typically range between 3 and 4 metres, with an average of 3 metres. Conditions vary, with visibility ranging from 10 to 60 metres and mild currents. Snorkellers should be aware of hazards including sea urchins and sharp coral. The water temperature remains warm throughout the year, fluctuating between 26 and 29 degrees Celsius.

Swiss Reef, located off the northern coast of Pemba Island, is a drift dive site featuring a combination of wall and reef topography. Divers typically explore depths between 15 and 25 metres, with visibility ranging from 10 to 30 metres. The site is defined by strong, variable currents and surge, requiring intermediate to advanced skills and careful buoyancy control. Species recorded around this area include wrasses, Indian lionfish, regal angelfish, leaf scorpionfish, and various anemonefish. Night diving is available at this location. Boat access is required, and divers are advised to carry a reef hook and surface marker buoy due to the dynamic current conditions.

Njao Gap is a reef and wall site located in the channel between Njao Island and Pemba Island. The topography features dramatic coral slopes, with shallow sections between 5 and 10 metres containing a variety of hard and soft corals. The site reaches depths of up to 40 metres, with an average depth of 12 metres. Due to strong currents, this location is suited for intermediate divers and requires boat access. Visibility typically ranges from 15 to 30 metres. The site is also suitable for snorkelling. Divers should be aware of risks associated with deep diving, including decompression and nitrogen narcosis.

Aquarium, located off the northern coast of Pemba Island, offers a diverse underwater experience by combining a coral reef with a muck substrate. Suitable for beginners, the site features depths ranging from 5 to 18 metres, with an average of 10 metres. Divers encounter mild currents and visibility typically between 10 and 30 metres. The reef supports various reef fish, while the muck sections provide habitat for leaf scorpionfish, regal angelfish, wrasses, and anemonefish including twoband and pink skunk varieties. Night diving is available at this location. Access is by boat only, and divers should be aware of sharp coral and potential pockets of low visibility.