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Hotels, dive operators, gear, and how to get here are on the Watamu Marine Park location page.
Overview
The signature dive of Watamu Marine National Park, East Africa's first marine reserve, gazetted in 1968. A coral-draped arch shelters an overhang packed with shimmering golden glassfish, and just south the reef splits into the canyon itself: a sandy channel roughly 25 m wide flanked by steep drop-offs that fall to 26-28 m. Divers usually start along a shallow drift line at 11-13 m, then drop into the trench where resident groupers, barracuda schools, and large stingrays patrol the sand. The shaded cuts and overhangs hold leaf fish and a long-resident ribbon eel. From November to March whale sharks cruise the outer edge as the northeast monsoon brings the year's warmest, clearest water.
Briefing note
Inside Watamu Marine National Park - a Kenya Wildlife Service daily park fee applies and is normally collected by the dive centre. At 25-28 m with possible current it suits Advanced Open Water divers and up. Diving is seasonal: the calm northeast-monsoon window (roughly October-March) gives the best visibility and the whale-shark season, while the southeast monsoon and long rains (April-June) bring rough seas and many operators close or scale back.
What you'll see
6 species curated- seasonalWhale sharkPeak: Nov · Dec · Jan · Feb · Mar
- year-roundMalabar grouper
- year-roundGolden sweeper (glassfish)
- year-roundBluestripe snapper
- rareRibbon eel
- rareWhitetip reef shark
Conditions
| Month | Water | Visibility | Current |
|---|---|---|---|
| Jan | 27–29 °C | 20–30 m | mild |
| Feb | 27–30 °C | 20–30 m | mild |
| Mar | 28–30 °C | 15–25 m | mild |
| Apr | 27–29 °C | 8–15 m | moderate |
| May | 26–28 °C | 5–12 m | moderate |
| Jun | 25–27 °C | 5–12 m | moderate |
| Jul | 24–26 °C | 8–15 m | moderate |
| Aug | 24–26 °C | 8–15 m | moderate |
| Sep | 25–27 °C | 10–18 m | mild |
| Oct | 26–28 °C | 15–25 m | mild |
| Nov | 27–29 °C | 20–30 m | mild |
| Dec | 27–29 °C | 20–30 m | mild |
Season calendar
Peak season highlighted · current month outlined
Gear for this site
Beyond the basic kit- Surface marker buoy (SMB) — The Canyon is run as a drift over the sand channel between two drop-offs and can pick up current - deploy an SMB on ascent so the boat can track you off the reef edge.
- Primary torch — The arch and overhangs hide dense shoals of golden glassfish and a resident ribbon eel that only resolve under a beam, and a light restores the colour of the soft corals in the shaded cuts.
Next step
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Hotels, liveaboards, dive operators, gear recommendations, and travel logistics for the whole region.
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