Scuba Season
Underwater reef at Diani / Shimoni
Partly surveyed

Diani / Shimoni

Kenya · East Africa

Kenya's southern coast hides one of East Africa's most biodiverse marine parks in Kisite-Mpunguti, where whale sharks patrol October to February and humpback whales sing through the channel from June to September, all above pristine hard coral gardens that see a fraction of the tourist pressure of the north.

How this reef is doing

How we measure this

Reef state

Partly surveyed

Inside the fully protected park off Shimoni, reef fish biomass runs far higher than in the fished waters around it, from roughly 680 to 1,350 kilograms per hectare against 260 to 460 outside (McClanahan et al. 2006); the wider Diani reef sits outside that boundary.

Coral cover

HEALTHY RANGE18%2017now
Declining

Fish life

Not surveyed

Heat

Not surveyed

Fishing

QuietBusy

Some fishing is allowed here, in marked zones.

Limited

Sources · MERMAID and the survey teams · Global Fishing Watch and reef gravity

Coral cover over time

Live coral cover, by survey year

Across 10 survey years from 2017 to 2026, live coral cover here has fallen from 23% to 18%. Every point is a real survey reading, never a projection.

Live coral cover, percent by year

70%0%region avg 29%2017201820192020202120222023202420252026
10 surveys, 2017 to 2026
Western Indian Ocean average (GCRMN)
MERMAID and the survey teams, within 56 km

What you will see

19 species across the dive sites here

Dive sites

Gear & getting wet

  • Basic kit

    • Mask and fins
    • BCD and regulator
    • 3mm full wetsuit · warm water
    • Dive computer
  • For specific sites

    • Surface marker buoy (SMB) · Kisite Reef