Skip to content

Educational Snorkeling Courses

Snorkeling Gili Islands

Explore with Purpose

icon-rectangle-black-family-friendly
icon-rectangle-black-marine-biologist
icon-rectangle-black-conservation-focused

Turn your snorkel trip in the Gili Islands into a hands-on learning experience. Whether you’re planting coral, identifying sea turtles, or spotting reef fish, each course is designed to connect you with the reef, and support our marine conservation efforts.

ready-to-snorkel-with-purpose
Book Now
Learn how corals grow, why they matter, and how we restore them. Visit our coral farm, plant your own coral fragment, and join a guided Coral ID snorkeling tour.
BOOK NOW
Meet the sea turtles of Gili Matra and learn how to identify individuals by their markings. A respectful, guided Turtle ID snorkeling tour that deepens your understanding of these gentle creatures.
BOOK NOW
Get to know the reef’s most colorful residents. Learn how to identify common reef fish and understand their role in the ecosystem during a guided Reef Fish ID snorkeling tour.
BOOK NOW
icon-schedule-indocoral

Course Schedule

9AM to 12PM

9:00 until 9:30
Theory session

9:30 until 11:30
Snorkeling tour

11:30 until 12:00
Debriefing + Ocean Awareness Talk

icon-conservation-focus

What's Included?

icon-snorkel-gear
Course, snorkel gear, national park ticket, water, coffee, tea, fruit.
icon-lead-marine-biologist-indocoral
Led by marine biologists.
icon-price-indocoral

Price per person

All inclusive: National park ticket, snorkelling gear, course, water, tea, coffee, and fruit on the boat.

Your contribution supports our coral restoration and community engagement efforts.

Group of 1–2 people: IDR 750,000
Group of 3 people: IDR 650,000
Group of 4 people: IDR 600,000
Group of 5 or more people: IDR 550,000

icon-prerequisites-indocoral

Prerequisites

icon-kid-friendly-indocoral
Kids minimum age 8.
icon-swim-mandatory-indocoral
Participants must be able to swim to join the course.
icon-mnimum-booking-indocoral
We operate with a minimum of 2 participants.
Book Now
×
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.

×
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.

×
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.

×
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.

×
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.

×
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.