Pemba Island is in Tanzania.
Pemba is mostly Muslim. It is recommended that women travel with long skirts, covered shoulders and a head scarf.
Swahili. Asalam Waaleikum is an arabic greeting that is used here. The corresponding response is Waaleikum Salam.
There is an often-used airport just outside of Chake Chake that has daily flights both to and from Zanzibar (Unguja) and Dar es Salaam for about 100,000 shillingi one-way. A cheaper alternative is a direct ferry from Dar es Salaam, although it leaves only twice a week and may not be suitable for strict schedules. There is also a direct ferry from Tanga that runs very infrequently and often stops running completely for weeks at a time. Note that the ferries are poorly maintained and have sunk before, resulting in massive numbers of fatalities. If you insist on taking a ferry, do not ride the night ferries.
You can purchase tickets for both the planes and the ferries at ticket offices in Chake Chake and Wete.
By dala dala (the local term for minibuses). There are small bus stations in both Wete and Chake Chake. Bus fare from Wete to Chake Chake costs 1500 shillingi, with shorter rides costing less and longer rides costing more.
Pemba is one of the diving jewels of of the east of Africa. There are at least two dive operators (Swahili Divers and Manta Reef) operating under the PADI and BSAC codes that serve visitors. Diver's highlights include: Extensive plate coral gardens on the west coast which make for a world class drift dive The marine reserve surrounding Misali Island that is threatened by proposed government development, hence now is the time to visit The annual whale migration in July and August when humpback whales have been reported on the east coast.