But I imagine they are more like "sat in a room in a house near the beach"
Same as a normal office, just a better view.
Well that is how it is for me living by the beach in the tropics. I can see the surfing point, I can see the parachutes pulled by speedboats, just a distraction and increases the desire to be "there" and not staring at a screen trying to fix bugs. Sometimes, I just move the table to face the wall.
And don't get me started about trying to work in a bar / cafe / restaurant near the beach. Mosquitos, noise, disturbance, tuts from staff that you are sitting there too long not buying enough.
Each to their own though. I suppose I am jealous of the posts that imply you can work 4 hours on tropical island, earn a western wage and live like a King. Which is far from the case in my experience. Even if I know these posts are trying to sell something based on this dream, or convince themselves they are doing the right thing (despite what they may hear from friends and family)
I dear say some contractor with fantastic contacts and get a great paying contract with a couple of phone calls. Most people don't have this.
It sure is a nice dream to have during rainy winters when you're stuck in a cold office though.
It also helps if all the team is senior and can work well together and understands the business. I can't see this working as well when you have juniors that need mentoring, or seniors that have zero clue about the business side of things so they need constant questioning.
Other companies see remote work mostly as a way to pay less for a developer, but want to treat him like he is in the office (heard stories of some companies wanting to have a constant video link to the office to make sure you aren't goofing off).
My point here was not about working the beach vs. somewhere else. It was about the possibility of working from wherever you want, but it has to be an appropriate place for what you're doing, of course.
For example this article I wrote in a terrace next to the beach. But that's because I love the sea and I found a good place to concentrate. Maybe your place is a quiet space next to the forest, or a lake, or... whatever! Just wanted to share that it's possible!
What I mean is that, instead of having 2 weeks of vacation per year, having to schedule it, and when I get to the location I'm out of work mode entirely -- maybe I can up and leave my hometown at will, spend a week at the beach or in the mountains or wherever whenever I wish, and still be connected and able to get my work done.
So, for example, I could get up in the morning and get some stuff done. Around 2 or so I pop out to the beach for a few hours. Then I come inside to finish up with work in the evening.
It's a nice way to only take 2 days off from work but actually get some relaxing time in a different setting.