My take... For most "influencers" it's just a hobby. They just like posting pictures of themselves in cool places. Maybe they have a monetization plan, maybe not. Either way, they make/made their money elsewhere.[0]

For a few, they're the modern equivalent of niche hobby and fashion magazines[1]. They publish some free content on Instagram or Youtube, maybe get some ad revenue, but also publish premium content on a subscription model, or have actual business arrangements with companies. But, they're working hard to do what they do.

EDIT - I didn't really address the original question, which was about one specific woman. I have no idea. I doubt she's being paid by resort owners. Either she has money, friends with money, or she's an escort. Or maybe something else I can't think of.

0 - https://www.youtube.com/channel/UC4SXMZsFPZMFN5-3UuF-k6w Trent Palmer does a lot of airplane stuff, but earns his living shooting drone footage for movies and commercials.

1 - https://melmagazine.com/en-us/story/the-lonely-life-of-a-yac... Alex Jimenez has business relationships with yacht brokers and gets paid to generate content in order to drive clients to lease/buy mega-yachts.