Gili air is one of three small islands located north-west of Lombok. The island is famed for its laid-back lifestyle and as we are located in the Coral Triangle, we have an incredible diversity of marine life. Local food is delicious, and we can help you find affordable accommodation in one of the many homestays on the island. No cars, no motorbikes, just as island life is supposed to be!

The Blue Marlin Dive center on Gili Air has established itself as one of the most professional, yet personal, dive schools around. Continuing on with the ethos of the sister Blue Marlin Dive Centers which have been running for 25 years, the school on Gili Air has also taken things a step further by becoming a Conservation Diver Training Center, the only one in Indonesia. The marine conservation training conducted by Conservation Diver instructor Leon Haines, who is a passionate and knowledgeable reef manager. They offer several of the Conservation Diver certification courses, and are adding new and innovative projects all the time.

What we offer

Currently, our center offers the core Conservation Diver courses, including:

1, 2 and 3-Week Conservation Diver Training Courses

At Blue Marlin Dive Gili Air we teach a 1, 2, and 3-week coral reef conservation courses every month.

During this time you can earn Conservation Diver certifications in:

One-week program: Reef Science Week

During the first week of the Conservation Diver course we focus on the Ecological Monitoring Program (EMP).
Every day will start with a lecture on the day’s topic, followed by a dive to put the theory into practice. You will learn the ins and outs of the tropical coral reef ecosystems, how to monitor invertebrate and fish species and how-to asses the health of corals. In addition to this we host a guest workshop by Belgian NGO, Save The Plastics, who will teach you how to monitor marine debris and microplastics in the environment.

Includes: Free T-shirt, EMP Manual and Conservation Diver Crew Kit

Two-week program: Artificial Reef Week

In the second week we take our new understanding of the reef and put it into action. After learning the theory and techniques you will design, build and deploy your very own coral nursery and artificial reef structures. Working underwater to restore coral reefs is one of the most fun, challenging and rewarding things you will ever do!

Three-week program: Advanced Ecological Monitoring Program

During the third week of the program we dive deeper in to the world of ecological monitoring and learn how to make our data more complete. You will earn an extra 4 certifications in advanced ecological monitoring, which will make you qualify for the prestigious Advanced EMP certification.

The 4 courses to be completed in addition to coral Taxonomy and ID are:

  • Coral Disease and Compromised Health Monitoring
  • Advanced Monitoring Techniques
  • Nudibranch Ecology and ID
  • Seahorse Ecology and Monitoring

Note: Lunch is included everyday during the above courses at the Blue Marlin Restaurant!


After completing all three weeks of the program, you can apply for a 3-month intern position with Conservation Diver Indonesia to gain more experience in day to day conservation activities, work on the development of existing monitoring and restoration work or focus on a research project/thesis for university.

1 day courses and workshops

Discover Conservation Diving

Not enough time? This one-day course will introduce you to coral reef ecology and monitoring reef species along a permanent transect line. You will earn the Coral Reef Ecology and Monitoring Certification.  You can choose to learn and practice on either Fish or invertebrate species.

Discover Coral Restoration

Want to learn about how reef managers restore coral reefs? In this 1 day course you will learn about the basics of coral reef ecosystems, threats to their health, and ways in which we can actively assist in their recovery. Next, you will join us on a dive as we show you how we use coral nurseries and artificial reefs to regrow naturally produced coral fragments. Participants can also help us to take monitoring data on the corals in our nurseries or artificial reefs. Although there is no certification for this course, it is a great way to learn about what is being done around the globe to help coral reefs and how you can actively assist those efforts. Also, income gained from this dive goes to support our local projects!

Seahorse Survey

Join us to Seahorse Bay in Lombok and learn about the evolution, ecology, threats, survey techniques and identification of seahorses. In Seahorse Bay we can find 3 species of seahorse and many different pipefish closely related to seahorses. After a lecture the evening before we will conduct a roving diver survey to monitor the seahorse population in the bay. All data is shared to the global online database at iSeahorse,com. By completing this course, you will earn the Seahorse Ecology and Monitoring certification. 

Nudibranch ans Seaslug Survey

Seaslugs are some of the most ornate and diverse organisms found on and around reefs. In this 1 day course, you will learn about the ecological and economic value of seaslugs, as well as how to find and identify them. This very interesting and fun course is a great way to learn more about these charismatic animals and set you on a life-long path of finding and observing new species whereever you may dive. Also included in this course is the Nudibranch Ecologyand ID certification card.

Already a conservation diver?

If you are already conservation diver certified from another training center you can either jump in on courses you have not yet done but do have the prerequisites for or inform about tailored experiences, such as designing and building your own reef and nursery.

For whom?

The courses are designed for anybody who is interested in coral reefs and conservation. You do not need a background in biology or science to start the course as we start from the very basics. If you’re on a gap year this course is a perfect way to get a taste of marine science and what it means to work in hand-on conservation.

University Students

Combining the three-week course together with an internship and your own research project can give you university credit for global placements or other scheduled internships abroad for students of (Marine) Biology, Oceanography, Conservation Biology, Zoology, Sustainability, Tourism, Coastal Zone Management and Environmental Sciences degrees.

Boost your professional dive resume!

Divemaster or Instructor? Diversify your CV, as a certified Conservation Diver you will stand out from the crowd with in depth knowledge of the environment you work in every day.

Not SCUBA certified yet? No problem!

Blue Marlin Gili Air is a 5-star PADI career development center. We offer all dive certifications from Open-water Diver to Instructor level. A prerequisite to join the conservation program is being Advanced Open-water certified (through any organization).

Interested? Contact us directly at


Contact us directly at

Instagram: @conservationdiverindonesia

Facebook: Conservation Diver Indonesia

Course Prices

CoursePrice (in Millions of DR)
1 Day Courses and Workshops1.8
2 Day 3
1-Week 13
2-Week 19
3-Week 28

All prices include dive equipment rental, boat movement, lunches and Materials and certifications.

reef survey conservation diver