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Map of Sangalaki Manta Run
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Boat entry

Sangalaki Manta Run

East Kalimantan, Indonesia
Open Water suggested3–20 m depthBoat entryRash guard or 2mm shorty typical

Boat dive — see Entry & access.

Sangalaki Manta Run at a glance

Sangalaki Manta Run is a boat dive site in East Kalimantan, Indonesia with depths of 3–20 m (10–66 ft). Typically most favorable Dec–Oct · from 3 years of archive data. Divers commonly see Reef manta ray, Green sea turtle, and Blue-spotted stingray. Recent reports put the water around 29°C (85°F). Check the latest conditions and entry details before you go.

Marine model · graded 3h ago
0.3 mwaves — under half a meter expected

Tap a factor for its source and model point · Forecast 29°C · seasonal avg 30°C

Site hazards: Mild current, plankton can reduce visibility, do not touch or chase mantas

Read the full hazards ↓

Dive windows this week

Best: Mon
Sun14:00–19:00
Mon7:00–19:00
Tue7:00–19:00
Wed7:00–19:00
Thu7:00–19:00
Fri7:00–19:00
Sat7:00–19:00

Favorable windowModerate window— no window

First light 5:44 · Sunrise 6:06 · Sunset 18:19

Source: Open-Meteo marine · model point 4.2 km from site · graded 3h ago

Forecast only — always assess conditions on site.

Recent diver reports

Dated firsthand observations from divers — not current conditions.

No diver reports for this site yet. — one dated observation helps every diver after you.

What Divers Say

Known for: Reef manta ray, Green sea turtle, Reef fish
Best time: Year-round; mantas present all year

Based on community reviews and site data. Conditions vary — always verify before diving.

Best months, historically

What conditions have historically been typical at this site, month by month — not a forecast.

  1. Jan100%29°C0.3 m
  2. Feb100%29°C0.4 m
  3. Mar100%29°C0.4 m
  4. Apr100%30°C0.3 m
  5. May100%31°C0.2 m
  6. Jun100%30°C0.2 m
  7. Jul100%30°C0.4 m
  8. Aug100%30°C0.3 m
  9. Sep100%30°C0.3 m
  10. Oct100%30°C0.2 m
  11. Nov99%30°C0.3 m
  12. Dec100%30°C0.3 m

January, February, March, April, May, June, July, August, September, October, and December havetypically had the largest share of favorable days here. Conditions vary year to year — this is historical context, not a forecast.

Based on 3 years of archive data. Bar height shows the share of days each month whose conditions have historically scored favorably.

Marine life seen at this site

Species noted at this site — not a promise of what you’ll encounter.

Species seen here

  • Reef manta rayCommonly seen
  • Green sea turtleCommonly seen
  • Blue-spotted stingrayOccasionally seen
  • Reef fishCommonly seen
  • CuttlefishOccasionally seen
  • NudibranchsOccasionally seen
  • Hard coralsCommonly seen
  • Eagle rayOccasionally seen

Fills & rentals nearby

No dive shops mapped within 25 km. Know one? Add it to the map.

Site details

A shallow plankton-rich plateau off Sangalaki island where reef manta rays congregate year-round to feed and visit cleaning stations, frequently seen barrel-rolling at 5 to 15 m. The island is also a major green-turtle nesting site, so turtles are a near-constant presence. An easy, magical site that is one of the Derawan archipelago's signature dives.

boatreef

Mild current, plankton can reduce visibility, do not touch or chase mantas

Reviews

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