What Do Coral Reef Conservation Volunteers Do Each Day?

The core of every morning is a dive. As a coral reef conservation volunteer at MRCI, that dive could take several forms depending on the week’s survey focus.

1. Reef surveys
   Volunteers conduct structured fish, invertebrate, and coral surveys along established transects recording species, abundance, and environmental data that feeds into long-term reef health monitoring. Each dive runs around 40–50 minutes and is led by a staff member. Over time, this time-series data reveals how the reef is responding to conservation efforts and climate pressures.
2. Coral nursery and transplanting
   The camp maintains active coral nurseries where volunteers clean and monitor juvenile corals, helping them reach a size where they can be transplanted back onto the reef. This is hands-on reef restoration — building the next generation of coral cover from the seabed up.
3. Artificial reef maintenance
   Volunteers dive to MRCI’s artificial reef structures to remove algae and sponges that can smother growing coral. Keeping these structures clear is essential to their productivity as reef habitat — and it’s one of the most distinctly practical things a coral reef conservation volunteer does anywhere in the world.
4. Dive Against Debris and CoralWatch
   In partnership with the PADI AWARE Foundation, some dives focus on collecting and cataloguing marine debris underwater. On CoralWatch dives, volunteers use the global Coral Health Chart to document bleaching levels — contributing data directly to worldwide coral monitoring efforts.

After the Dive: Data Entry and Learning

Reef surveys generate a lot of data. After rinsing gear and taking a short break, volunteers upload dive records, log species counts, and cross-reference photographs against existing survey data. For those with prior experience, there’s also the opportunity to assist with deeper data analysis that shapes the team’s conservation approach.

Theory sessions run most mornings before lunch — covering fish identification, invertebrate ecology, coral biology, and test preparation for the Conservation Diver certification all volunteers complete as part of the programme.

Afternoon Activities: Reef Conservation Above the Waterline

Not everything a coral reef conservation volunteer does happens underwater. Afternoons rotate between a range of complementary tasks that are equally important to the programme’s impact.

1. Beach clean-ups
   Coastal litter doesn’t stay on the beach — it migrates into the reef. Volunteers conduct regular clean-ups at low tide, documenting debris at known pollution hotspots. Clean-up data is contributed to the Ocean Conservancy’s global Clean Swell project.
2. Artificial reef construction
   When not maintaining existing structures underwater, volunteers help build new artificial reef units on land — assembling concrete forms that will be deployed on the seafloor to expand coral habitat and fish populations.
3. Community education and outreach
   Volunteers run workshops at local schools and partner institutions, sharing knowledge about reef ecology, marine biodiversity, and the threats facing Madagascar’s coastline. Local community engagement is as central to long-term reef protection as the dive work itself.
4. Sustainability activities
   Ecobrick-making, bamboo straw workshops, and Malagasy language lessons round out the afternoon rotation — connecting the programme to the people who live alongside the reef and giving volunteers a richer understanding of the place they’re working in.

Two Experiences Every Coral Reef Conservation Volunteer Remembers

Watching your artificial reef come to life

Volunteers don’t just observe reef conservation — they build habitat from scratch. Assembling and deploying artificial reef structures on land, then returning on a later dive to find fish already colonising the new surfaces, is one of the most tangible conservation outcomes available anywhere in the world. You can point to something on the reef and know you built it.

Learning to dive for science

For many volunteers, this programme is where they become confident divers for the first time. PADI certification, species ID training, Conservation Diver qualification — the process requires focus and patience. But it transforms every subsequent dive into fieldwork rather than recreation. That shift in perspective is something coral reef conservation volunteers take home long after they’ve left Madagascar.

Getting to Nosy Komba

You fly into Nosy Be’s Fascene Airport, transfer to Hellville, and take a 30–40 minute boat ride to Nosy Komba. From the beach landing, a short walk up the slope brings you to Turtle Cove — the research camp built into the hillside above the dive deck. The house reef, now a designated Marine Protected Area, is a two-minute walk from your bunk. For more advanced survey sites, the team travels by boat to Nosy Tanikely Natural Reserve and Nosy Verona

Life Between Dives

Nosy Komba rewards time off. The beach is steps from camp, the water is warm, and the island has enough trails, villages, and wildlife to fill any free afternoon. Yoga with ocean views, snorkelling on the house reef, and informal Malagasy lessons with the local team are among the most popular ways to recharge between dive days.