Mary Isabella Reef
Why dive here
With 71+ marine species recorded in the area - including barracuda and pufferfish - Mary Isabella Reef offers some of Malpelo Island's richest reef diving. Water ranges 28-30°C, warmest September, October, November.
Mary Isabella Reef offers a solid dive at Malpelo, a good spot if you're looking for reef action away from the main currents. We've often found schooling grunts and snapper here, sometimes a passing whitetip reef shark. It's a calmer alternative to some of the more exposed Malpelo sites, making it suitable for divers who prefer a more relaxed pace.
Typical Mary Isabella Reef Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Reviews for Mary Isabella Reef
Conditions
Ocean conditions, forecast and tides for Mary Isabella Reef
Mary Isabella Reef Ocean Conditions
Monthly averages for Mary Isabella Reef, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (12.4, -81.47) (108km away)
October Averages
Sea Temperature
30°C
86°F · Range: 29.3–31.3°C
Current Speed
13.42 cm/s
Direction: NE (63.4°)
Chlorophyll-a
0.094 mg/m³
Very clear (oligotrophic)
Salinity
34.38 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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