Ruta Cuarenta
Why dive here
With 238+ marine species recorded in the area - including blacktip reef sharks, giant moray eels, pygmy seahorses, seahorses and sperm whales - Ruta Cuarenta offers some of Sulawesi's richest reef diving. Water ranges 29-31°C, warmest June, October, November.
Ruta Cuarenta offers a nice mix of habitats, starting with a reef slope that gently eases into a proper wall. We usually find it’s a good spot for keeping an eye out for the smaller stuff – nudibranchs are often tucked away in crevices, and if you’re patient, those little sexy dancer shrimp often make an appearance. After the wall, the profile transitions to a sandy bottom that eventually becomes a sloping reef again, making for an easy drift. It's a relaxed dive, good for photographers keen on macro subjects, or anyone just wanting a chill exploration without strong currents.
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Conditions
Ocean conditions, forecast and tides for Ruta Cuarenta
Ruta Cuarenta Ocean Conditions
Monthly averages for Ruta Cuarenta, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (1.5, 124.75) (0km away)
October Averages
Sea Temperature
30°C
87°F · Range: 29.6–31.2°C
Current Speed
1 cm/s
Direction: W (270°)
Chlorophyll-a
0.099 mg/m³
Very clear (oligotrophic)
Salinity
33.17 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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