So... when all else fails, GOOGLE! When using these dress code terms, the GOOGLE does an impressive job with providing cool options of what to wear to a Caribbean wedding.
Also, I found the articles on the websites below really helpful!
Ultimately, embrace the island spirit with chic or beachy semi-formal attire that’s stylish yet perfect for the tropical weather!
https://www.brides.com/beach-wedding-attire-4842339
https://paradiseweddings.com/blog/destination-wedding-attire-guide/