Reefwander
Orange anthias fish swarm over a colourful coral garden on Mafia Island's reef

Mafia Island · Tanzania · Drift · Reef

Mikadini

A drift along a coloured coral slope to 25 m

Area photo: brittonpaul83 · CC BY-SA 2.0

Mikadini is a gently sloping fringing reef that cascades down to 25 m, carrying a lot of brightly coloured coral on the way. It often runs with a current, so the site is dived as a drift: the boat drops you up-current and you cover ground along the slope rather than working one patch of reef.

Where it is and how deep

Depth profile of Mikadini: typical dive to 25 m (to 82 ft) 18 m · Open Water30 m · Advanced40 m · Recreational limit25 mtypical dive
Depths on a shared scale to 40 m (130 ft); dashed lines mark common certification limits.

7.9395° S, 39.8184° EPublished position for this site.

The dive

This is a negative-effort dive when the current is running. The boat puts you in up-current and you descend onto a fringing reef that slopes gently rather than dropping away, cascading down to about 25 m at its deepest. Get your depth sorted in the first minutes, then let the water carry you along the slope and use fins for position on the reef rather than for progress.

The brightly coloured coral along the slope is the reason to be here, and it passes at whatever pace the water sets, so the discipline is to look ahead rather than stopping on things that are already behind you. Because the ground rises steadily as you go, the natural shape of the dive is deep first, then gradually shallower along the same drift line, ending with a mid-water safety stop and a pickup wherever the current has taken the group.

Marine life and season

The sources we used don't single out particular species here.

Month-by-month season rating for Mikadini
JanFebMarAprMayJunJulAugSepOctNovDec
PrimePrimeFairFairFairGoodGoodGoodGoodPrimePrimePrime

Season follows Mafia Island: Whale shark season peaks October-March; the March-May long rains bring rougher seas and reduced visibility.

Know before you go

  • The current is the point of the dive: stay with the group, carry a surface marker buoy and deploy it before the safety stop so the boat can track the drift.

Questions divers ask

Is Mikadini a drift dive?+

Usually. The site often has a current running along the fringing reef, and it is dived as a drift down a gently sloping reef that reaches around 25 m.

Sources

  1. Mikadini - Scubago — Scubago

More dive sites in Mafia Island

Coral garden

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Coral bommies on white sand, from 5 m down to 17 m

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Mafia's adrenaline dive, run in a very strong current

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A vertical face with shallow caverns, 8 m to 26 m

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Pink and purple corals down a seaward reef slope to 26 m

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A coral bank to 15 m, dived by day and after dark

to 15 mbeginner

A shallow reef inundated with nudibranchs, 300 m off the beach

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