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Gili Matra Marine National Park
Gili Air Island & North Lombok

Coral Restoration

A small, grassroots marine-conservation team working below the surface of Gili Air. Action-first, transparent, and focused on tangible, on-the-ground results.

action-first

Action-first,
not talk-first

grassroots-local

Grassroots
& local

transparent-authentic

Transparent
& authentic

education-locally-visitors

Education,
locally & visitors

Who We Are

Not your typical non-profit.

Indo Coral Conservation isn’t your typical non-profit organization. We’re a small, grassroots marine conservation team deeply committed to action and impact. We believe real change often happens quietly, below the surface, just like the reef.

  • Action-first approach rooted in real-world impact.
  • Grassroots team deeply connected to the local community.
  • Focus on tangible, on-the-ground results.
  • Transparent and authentic in everything we do.
  • Passionate about educating locally and inspiring visitors to protect marine life.
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Get Involved

Courses & internships.

From a fun first snorkel above our coral nursery to a multi-week internship on the reef, you pick where you start. Every program is hands-on and led by marine biologists, and every fee you pay directly funds Indo Coral’s conservation work.

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Educational snorkelling courses

Led by marine biologists.

  • Must know how to swim
  • Runs daily, 9am-12pm
  • Minimum 2 participants
  • Kids minimum age 8

Our most accessible program: a guided swim above the coral nursery for total beginners, families and visiting groups. No certification or prior experience needed.

PRICE PER PERSON *

1–2 peopleIDR 750,000
3 peopleIDR 650,000
4 peopleIDR 600,000
5 or more peopleIDR 550,000

* Includes course, snorkel gear, water, coffee, tea, fruit. Every session is run in person by our own marine biologists, right here on Gili Air

Quick enquiry

Ask about a snorkelling date.

First Name *
Last Name *
Email Address *
Choose your snorkel tour *
Preferred date *
Number of people *
Questions (optional)
indo-coral-homepage-Marine-Ecology-Diver-Courses
Marine Ecology
Diver Courses
Certified divers only
SSI certification included

CHOOSE YOUR SPECIALITY

Coral DiverIDR 750,000

3 days / 4 boat dives

Sea Turtle DiverIDR 650,000

2 days / 2 boat dives

Reef Fish DiverIDR 600,000

2 days / 2 boat dives

indo-coral-homepage-Marine-Conservation-Internship
Marine Conservation
Internship
Certified divers only
SSI certification included

CHOOSE YOUR INTERNSHIP

Sea Turtle EcologyIDR 7,800,000

1 week / 11 boat dives

Reef Fish EcologyIDR 7,800,000

1 week / 10 boat dives

Coral EcologyIDR 23,400,000

4 weeks / 33 boat dives

Full BundleIDR 39,000,000

6 weeks / 54 boat dives

indo-coral-homepage-Marine-Conservation-Divemaster-Internship
Marine Conservation
Divemaster Internship
Open to anyone fit for diving
SSI certification included

EXCLUSIVE OFFER

Divemaster Internship
from IDR 24,300,000
8 weeks / Unlimited diving

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Marine Conservation Internship
IDR 39,000,000
IDR 19,000,000
5 weeks / 44 boat dives

* Want to add Rescue, Advanced, or Open Water? Let us know your certification level and we’ll match you with the right package.

Our story

The greatest threat to our planet is the belief that someone else will save it.

– Robert Swan
British explorer & environmental activist
Ready To Dive?

Our partner dive center.

3W Dive isn’t just our dive partner, it’s where Indo Coral began. A well-regarded, sustainability-minded dive school on Gili Air, 3W Dive still runs every boat, course and certification we offer today.

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Reviews

What our customers say.

5★ based on 70+ reviews

★★★★★
“Definitely one of the highlights of our time in Indonesia. I had wanted to find something conservation focused to add an educational element to the trip for our twelve year old, and this was perfect.”
★★★★★
“We took the Coral class with Chris who is a master in science of marine biology! He is very knowledgeable and a good teacher. We loved getting to participate in the Coral transplantation and learning to identify the different types of Coral.”
★★★★★
“Our family had a wonderful morning! The tour guides were very helpful, warm, and informative! They made it fun and accessible!”

OUR PARTNERS

Working alongside.

In partnership with the University of Mataram, Indo Coral Conservation funds two scholarship cohorts a year, giving local students a fully-funded 12-week marine research internship. All our programs are run by our partner dive centre, 3W Dive.

Questions

Good to know.

What does Indo Coral Conservation do?
We’re a grassroots marine-conservation NGO on Gili Air, Indonesia, running hands-on coral restoration (coral nurseries, reef monitoring) plus marine-education courses and internships, in partnership with 3W Dive.
Gili Air Island, inside the Gili Matra Marine National Park, off the coast of North Lombok, Indonesia.
No. Our Educational Snorkelling Courses are open to anyone who can swim, age 8 and up with no diving certification needed. Our diver-level programs (Marine Ecology Diver Courses, internships) require an existing scuba certification.
Yes. Every fee paid for a course or internship directly funds Indo Coral’s conservation work, not just the diving itself.
3W Dive, a sustainability-minded dive center on Gili Air and Indo Coral’s founding partner, run every boat, course and certification we offer.

Message us on WhatsApp or use the enquiry form. Most questions get a same-day reply.

You can make a difference

Help us protect the reef.

Every donation funds nursery frames, reef monitoring dives, and free marine education for local kids and visiting divers.

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What is BRUV – Baited Remote Underwater Video method?

A camera is placed on the seafloor with bait positioned in front. It records fish that come to investigate over a set time. Footage is reviewed later to identify species and behavior. It’s a passive method like setting a camera trap for marine life.

In short: BRUV = film fish attracted to bait, then analyze the video later.

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What is UVC – Underwater Visual Census method?

Divers swim along a transect line and visually record all fish seen within a defined area. They note species, size, and numbers during the dive. It’s a live fish count. Like taking attendance in a moving classroom.

In short: UVC = spot and count fish by eye while swimming the transect.

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What is Belt Transect method?

A measuring tape is laid out along the reef. In our case divers count all visible invertebrates (e.g. sea cucumbers, starfish) within a set belt width usually 1 or 2 meters. They record species and numbers while swimming slowly along the line. It’s a wide-area visual count like sweeping a corridor for invertebrates.

In short: Belt = count all invertebrates within a set zone along the tape.

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What is 3D Coral Monitoring method?

Divers take multiple photos of coral structures from different angles. Photos are processed using software to build a 3D model of the coral. This model shows shape, size, and changes over time. It’s like creating a digital twin of the coral to track its growth.

In short: 3D = capture coral from all sides, then build a model to monitor changes.

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What is UPT – Underwater Photo Transect method?

A measuring tape is also laid out along the reef. Instead of recording points manually, divers take overlapping photos along the line. These images are later analyzed on a computer to assess coverage and species. It’s a visual capture method like scanning the reef with a camera for later analysis.

In short: UPT = record the whole transect with photos, then analyze later.

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What is PIT – Point Intercept Transect method?

A measuring tape is laid out along the reef. Divers record what’s directly under specific points at fixed intervals (e.g. every 10 cm). It’s a manual, visual sampling method. Like checking what’s beneath each tick mark on a ruler. Data is written down underwater, point by point.

In short: PIT = record what’s under each point by eye, underwater.