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Large Mobula alfredi fish swimming under clear blue water of ocean near coral reefs on sunny day
📷 Svetlana Obysova · Pexels

Sangalaki — Manta Channel

Sangalaki Manta Channel is an intermediate dive spot in Indonesia where manta rays gather in deeper waters, accessible year-round.

⭐ Best for intermediate divers chasing chasing pelagics.

updated 4 months ago
Difficulty
Intermediate
Depth
5–25 m
Pelagic hotspotPhotoFriendly

At a glance

Activity
dive
Difficulty
intermediate
Depth
5–25 m

Map

This spot Airport Nearby spots
© OpenStreetMap · CARTO
Open in Google Maps

Conditions today

Conditions

Open-Meteo
Wind
10.9 kn
Wave
0.28 m
Water
29.3°C
N E S W
Wind direction (7d)
Primary: NE (23%)
Now: W (275°)
Tide (7 days)
range: 1.99m

Next: Low at 03:00 (+0.31m)

+1.7 m0 m-0.3 m
▼ 03:00 · +0.31m ▲ 08:00 · +0.63m ▼ 14:00 · +0.21m ▲ 22:00 · +1.03m
Sat 19Sun 20Mon 21Tue 22Wed 23Thu 24Fri 25
UV9.15 · very high Air PM2.520 · moderate 05:56 18:03
Day Wind Wave UV Rain
09-19 12.5 0.3 9 9mm
09-20 8 0.1 9 2mm
09-21 7.4 0.08 9 0mm
09-22 8.1 0.08 9 5mm
09-23 9.4 0.06 7 3mm
09-24 6.7 0.1 9 3mm
09-25 6.7 0.1 9 1mm

About this spot

Sangalaki Manta Channel sits off Sangalaki Island in East Kalimantan's Berau Regency. The site draws divers to depths between 5 and 25 meters, where manta rays are the main attraction. The channel creates natural feeding conditions that bring mantas to the area, making this a premier destination for manta encounters in Indonesian waters. The dive works best for intermediate-level divers comfortable with moderate depth and current. The site operates year-round, giving you flexibility to plan when it suits your schedule. Three community videos document dives here, providing useful reference for what to expect before you arrive. Access from Sangalaki Island is straightforward, and the spot sits outside any marine protected area, meaning standard dive operator protocols apply. Plan dives with local guides familiar with manta behavior and current patterns. The channel's depth range and manta aggregations make it a solid choice for divers wanting to see large pelagic species in their natural habitat.

📖 Guide: Diving in Indonesia: 323 Sites, Mantas to Micro-critters

Dive types

Pelagic / blue water

Trip essentials

Everything you need before you pack — checklist, sun, logistics.

Trip checklist

  • 🛂 Visa-free or visa-on-arrival
  • 📜 C-card + dive insurance (DAN)
  • 📔 Dive logbook
  • 🧴 Reef-safe sunscreen SPF 50+
  • 🔌 Plug type C/F · 230V adapter
  • 💊 Seasickness meds + ear drops
  • 📱 Offline maps + emergency contact

Quick facts

  • 🌓 Moon First quarter · 47%
  • GPS
Sustainability disclosures
🌍 CO2 footprint LHR ↔ 11762km · ~2705kg · €49

From your departure country

United States
Origin score: 54/100
  • Visa: Visa on arrival · 30 days max
  • Flight: 12h · direct
  • Jet-lag: 12h east · 8 days recovery

FAQ

When is the best time to dive Sangalaki Manta Channel?

The site is diveable year-round, so you can plan your trip based on your schedule rather than seasonal constraints. Local dive operators can advise on current conditions during your intended visit dates.

What depth and skills do I need?

Dives here range from 5 to 25 meters, making it suitable for intermediate divers. Comfort with moderate depth and awareness of manta behavior is helpful. Certification equivalent to an Open Water standard is a baseline expectation.

What marine life will I see?

Manta rays are the signature species drawing divers to Sangalaki Manta Channel. The channel's structure creates feeding zones that attract them regularly. You may also encounter other fish species typical of East Kalimantan's reefs.

How do I access the site and do I need permits?

Sangalaki Island is the jumping-off point. Book dives through local operators based on the island or nearby Berau. No special permits are required beyond standard dive operator insurance and documentation. Guides familiar with the channel are essential.

Verified marine species observations

82 records · 48 species · sources: OBIS, GBIF

Tridacna squamosa

Bivalvia · Cardiidae
GBIF
Last seen:
29 Mar 2026
×6records

Galaxea fascicularis

Anthozoa · Euphylliidae
GBIF
Last seen:
29 Mar 2026
×1records

Pocillopora damicornis

Anthozoa · Pocilloporidae
GBIF
Last seen:
29 Mar 2026
×1records

Montipora digitata

Anthozoa · Acroporidae
GBIF
Last seen:
29 Mar 2026
×1records

Varuna litterata

Malacostraca · Varunidae
GBIF
Last seen:
27 Mar 2026
×1records

Linckia laevigata

Asteroidea · Ophidiasteridae
GBIF
Last seen:
26 Mar 2026
×1records

Acropora yongei

Anthozoa · Acroporidae
GBIF
Last seen:
22 Mar 2026
×1records

Goniastrea minuta

Anthozoa · Merulinidae
GBIF
Last seen:
17 Mar 2026
×1records

Glaucostegus typus

Elasmobranchii · Glaucostegidae
GBIF
Last seen:
7 Mar 2026
×1records

Tridacna maxima

Bivalvia · Cardiidae
GBIF
Last seen:
26 Feb 2026
×5records

Hippopus hippopus

Bivalvia · Cardiidae
GBIF
Last seen:
26 Feb 2026
×3records

Jorunna rubescens

Gastropoda · Discodorididae
GBIF
Last seen:
26 Feb 2026
×1records

Data: 187,991 observations from OBIS (Ocean Biodiversity Information System) and GBIF (Global Biodiversity Information Facility). CC-BY 4.0.

See this spot in action

YouTube videos — click to play.

Check Dive Special 4K : Derawan Islands, อินโดนีเซีย Sangalaki - Kakaban - Maratua

Check Dive

Sangalaki Diving - the best diving of Borneo

whfu99

Sangalaki,Kakaban,Maratua Island ll Beautiful Indonesia

PKR Channel

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