Harto's Reef
Protected Area
SUAKA ALAM PERAIRAN KEPULAUAN RAJA AMPAT DAN LAUT SEKITARNYA
Why dive here
With 236+ marine species recorded in the area - including blacktip reef sharks, manta rays, mobula rays (devil rays), pygmy seahorses and sea turtles - Harto's Reef offers some of Raja Ampat's richest reef diving. Water ranges 29-30°C, warmest May, November, December.
Harto's Reef in Raja Ampat might not be one of the blockbuster sites, but we've always found it reliable for a relaxed dive. We’ve seen an impressive number of goby species here, from the tiny Forktail Pygmygoby to the more elusive Greybeard Dwarfgoby, often tucked away in small coral heads. If you’ve got a macro lens, it’s a good spot to slow down and really look closely. We’ve also had luck spotting Denise's pygmy seahorses here, blending perfectly with their gorgonian hosts. It’s a site for divers who appreciate the smaller details rather than big pelagics.
Safety Notes
Strong currents typical this month (avg 35 cm/s). Good buoyancy control essential.
Nearest Dive Centres to Harto's Reef
Dive shops near Harto's Reef
Andau Dive Resort
Mantastic Scuba Paradise
Papua Explorers Resort
Mangkur Kodong
Lumba Lumba
Delvin
Reviews for Harto's Reef
Conditions
Ocean conditions, forecast and tides for Harto's Reef
Harto's Reef Ocean Conditions
Monthly averages for Harto's Reef, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (-0.5, 130.6) (0km away)
October Averages
Sea Temperature
30°C
86°F · Range: 29.2–30.9°C
Current Speed
34.71 cm/s
Direction: NW (311.5°)
Chlorophyll-a
0.138 mg/m³
Clear water
Salinity
34.33 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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