Marine Conservation

Guardians of Aroa Lagoon
Aroa Lagoonarium Marine Sanctuary is one of Rarotonga's most treasured marine environments and is protected under a traditional Ra'ui.
At The Rarotongan Beach Resort & Lagoonarium, our Marine Conservation Programme allows guests to explore this unique ecosystem while contributing to reef conservation, restoration and research alongside our marine scientists.
Marine Conservation Highlights To Date
- Aroa Lagoon declared as a Rau'i (protected area) by traditional leaders on 1 March 2000.
- 2000+ Coral Fragments Restored
- 1 Active Restoration Site
- 100+ Restoration Frames deployed
- 2 Ecological Baseline Surveys
- Community Engaged in Conservation
Guest Programmes @ The Rarotongan
Discover the different ways you can explore and contribute to Aroa Lagoonarium Marine Sanctuary.

REEF GUARDIANS
Designed for young explorers, combining snorkelling, marine science and reef discovery.

REEF DISCOVERY
Learn how marine scientists study reef ecosystems through hands-on monitoring and data collection.

CORAL RESTORATION EXPERIENCE
Take part in active reef restoration by helping maintain our coral nursery site at Aroa Lagoonarium Marine Sanctuary.

REEF RESEARCH SERIES
Evening presentations exploring marine science, conservation and current reef research in the Cook Islands.

Restoring Rarotonga’s Reefs
The Rarotongan Beach Resort's Marine Conservation Team is expanding coral restoration efforts within our protected Aroa Lagoonarium Marine Sanctuary to support reef recovery and improve habitat for marine life.
The project builds on the existing coral nursery within the protected traditional Ra'ui (where fishing and the taking or disturbing of any marine life is prohibited) promoting coral transplantation, ecological monitoring and scientific research to better understand reef recovery while increasing coral cover and connectivity.
Explore the Marine Conservation Project
Discover the work completed at our Aroa Lagoonarium coral restoration site during 2025 through GIS mapping.

Meet our Marine Scientist
Have questions about our programmes or reef conservation activities at Aroa Lagoonarium Marine Sanctuary? Get in touch.
Please be aware that our Marine Conservation Reef Guardians and Discovery Programmes are exclusively for in-house guests of The Rarotongan and/or Sanctuary Rarotonga resorts.
Marine Conservation Programme Lead I The Rarotongan Beach Resort & Lagoonarium and Sanctuary Rarotonga-on the beach
