A decent watch, could watch again, but I don't think I can honestly recommend.
As much as I feel like I liked the movie as a whole, the more I think about what it actually is, and it is definitely a better atmospheric movie than it is an epic story or a high paced creature feature.
This is a slow burn, hinting at this or that, drip-feeding information until things are just very obvious. While I think a "Jaws" approach definitely would have given more punch, the movie opts for a deeper question of "I see what's happening, but why?".
The movie definitely takes the time to discuss everything in detail, and while the things that would need some explanation are interesting, the movie is filled to the brim with someone's vacation video.
Ultimately worth a watch if you're into semi-grotesque semi-horror stories this should be worth a watch, but I don't know how many people are going to come back to watch this one again.