Here are the Details of Kenya/Tanzania.

When to go
Good All year round (Not May). Exceptional Jun - Oct.
Marine Life
The safari parks of Kenya dn Tanzania are legenday, but under water too these countries offer more "big game", including whitesharks, whale sharks and tiger sharks, manta and eagle rays. Sailfish and marlin in he Pemba Channel. A series of fringing and atoll reefs provide hard and soft dcorals with attendant reef fish plus turtles, groupers and large wrasse, but there is evidence of damage to coral caused by El Nino.
Diving
Diving for beginners to advanced with depths from 6m to 35m. Shallow coral gardens, reefs, sloping banks, vertical drop-offs. Diving is by boat, and some of the best sites in the Pemba Channel are only accessible by live-aboard.
Areas
Many sites along the coastal barrier reef and Pema Channel including the Mtwapa drop-off, Bamburi Buoys and Coral Gardens off amburi, north of Mombasa; and ligthhouse, Mnemba Channel and Lala Salama off Zanzibar.
Cost
Moderate
In Water
Light to Medium Weight wetsuit or Lycra suit.
On Land
Light tropical clothing.
Hazards
Normal reef hazards. Strong currents in the Pemba Channel.
Currency
The Shilling/US Dollar
Electricity
220/240V
Visas
True
Info
www.tanzania-web.com