Pemba is a great location for diving and resort activities, it is also the jump off point for travel to the Quirimbas Archipelago.
Wimbe Beach in Pemba Bay is the place for setting off to a variety of excellent deep dive sites where you'll see incredible marine life and great topography. There are shallower reefs close to the continental shelf for multi-level diving and then there are deep dives, here are some suggestions:
The Gap reef is south of Pemba and very close inshore. There is a continental shelf drop off which goes straight down for between 15 and 100 metres (up to 328 feet). Plenty of big game fish occur here. It's suitable for advanced divers with deep diving experience.
Playground is a shallow wall dive of up to 12 metres (39 feet) on Pemba Bay's northern peninsula that can only be dived when the conditions are good. There are caves and overhangs rich with crayfish and other marine life. Advanced divers with deep dive experience are suited to this site.
Pyro Banks is close to The Gap. It is a shallow reef of up to 15 metres (49 feet) with lots of fish and corals to see. It's suitable for advanced divers with deep diving experience. Nearby is another coral reef, Ponta Saide Ali, which slopes down to 21 metres (68 feet). It has a huge bank of coral and a valley packed with anemones. Advanced divers with deep experience could see reef sharks, Gurnards, Rays and even Black Marlin.
River Mouth features large boulders and a coral reef that reaches 24 metres (78 feet) in depth. It is located at the mouth of the Tari River, so visibility is best at high tide. Advanced divers with deep experience could spot huge Napoleon Wrasse, reef sharks, Rays and Snowflake Soap Fish.
Willys Reef lies between Playground and River Mouth and it's another deep dive for advanced divers with this kind of experience. There is a flat reef with a tall ridge on one side and a sandy bottom. The average dive depth is about 30 metres (98 feet) and you'll see reef sharks, Rays, sea turtles and even Black Marlin.
Farol Ledge is also a dive for advanced divers with deep experience. The average depth is about 30 metres (98 feet) but the ledge starts out quite shallow and then drops down. You could spot all the big stuff as well as Snowflake Soap Fish and lots of coral fish.
Baobab Rocks consists of a string of boulders and rocks on a sandy slope. The average depth here is about 30 metres (98 feet) and it's suitable for advanced divers with deep experience. Crocodile Fish are abundant and you'll also see the usual reef sharks, Rays, sea turtles and Black Marlin.
Whipcoral Garden is a group of underwater hills which are covered in coral and soft sponges. You can reach great depths but the average is about 30 metres (98 feet). This is an advanced deep water dive in the bay which is great when the conditions are not good outside of the bay.
Penguin Shoal consists of big banks of coral and also a coral whip forest. Again, the average depth is 30 metres (98 feet) and the dive is best for advanced divers with deep experience. All the usual suspects can be seen here as well as large Crayfish.