Snorkel help with Martinique

I am sailing on NCL Pearl next March. There is not a single snorkel excursion offered on Martinique. I know there are rules about suggesting providers but I am desperate for someone to suggest some tour, excursion or provider that I could contact that would help me set up a snorkel trip on the island. This

I am sailing on NCL Pearl next March. There is not a single snorkel excursion offered on Martinique. I know there are rules about suggesting providers but I am desperate for someone to suggest some tour, excursion or provider that I could contact that would help me set up a snorkel trip on the island. This

If you ever find out any info please let me know . I am on the Pearl on April 6 sailing TY