Everything except which beaches are naturist - a big disadvantage for both us and serious prudes.
There is at least one documented case of people turning up at a package hotel in the middle of a 3-mile clothing optional beach and requiring their children to be protected from the sight of naked people.

It does tell you the naturist beaches John, you have to click on the beach & then click on beach check. A bit of a bind but if your going to a certain area it gives you all the information on the beaches. I still think it’s the best site I have seen.

I have now found the naturism entry and it needs updating for El Cotillo - the beaches which I know best.
Los Lagos in El Cotillo Fuerteventura is a traditional naturist beach which I use every year but the naturism symbol is grayed out and naturism is not mentioned in the text. As it is listed as a family beach I have no wish to have trouble from a parent who does not want his children to see naked people. There have already been problems at La Concha (which is listed as naturist) because of objections to naked men drying themeselves after a swim.
Also I have never seen a lifeguard at La Concha beach.
I agree that it is one of the most comprehensive beach guides I have ever seen, but that means it should be accurate.
Can you give me a clue as to where one can report such small but critical errors as I failed to find the relevant link.

Sorry John I don’t know, I have not read it right through yet. I have just uploaded the app for Fuerteventura & it gives you a selection of nudist beaches. I will have to look at that when I get back from golf.