On the map you got (not the blueprint or the in-game map) you can see there's a building on procopio beach, but there is nothing to see. Why did rockstar make it look like there's a building or something else on procopio beach. Procopio beach is the north beach right to paleto bay. Plz do some research
Failsnail, plz do a little yourself. Not having a go your new but we did discuss it very recently but I'll repeat it for you to save trawling for it.
It looks like a jetty, pier, building is there but when you visit theres nothing to be seen.
We can not explain it other than somthing was removed post map production.
At the spot there is a texture on the sand looking like a boat was beached there and swept off or somthing dragged from the spot into the sea. Its just a sand texture and personally i dont think it means much.
Just back from that is a slightly raised shelf of rock coming out of the sand. At the right hand side of that with your back to the sea, the rock is squared off like a curb stone or simular to the top of one of those concrete pipe outlets but its only the very top. Again i think its just textures.
Again with your back to the sea, further right there is a strange arrangement of wooden fencing on the beach. It looks like two open pens and some fencing coming off those. I dont know what to make of it but again I'm thinking decoration.
There are a few errors simular to missing buildings (errors?) such as an invisible ladder you can climb.
Hope this puts your mind at ease.