I went to Caqalai, Fiji, last February on the marine conservation project, I was previously only an open water diver so in the first week I did advanced open-water training, and also did the Reef Research diver qualification which was really fun, before I progressed onto doing surveys of the invertebrate species on Caqalai's reefs. The diving was out of this world and I experienced so many things I would never have done otherwise.
The community on the Island was also great. Living on a small island with a group of people is immersive to say the least, so we all bonded incredibly quickly and I made friends for life. I also met loads of people at various stages in their studies of environmental or marine sciences which was really helpful for helping me to decide on what I wanted to study this year and I got tons of advice on how to make the most of my degree after volunteering and how to stay involved back home.
I would recommend this project to anyone!