Hi, Greecemad,
As regards the length of the beach ..... estimates vary from 12km to 27km - I plumped for something in the middle ..... no chance of walking end-to-end with my legs
I've reckoned the beach as starting at Stylidia/Ag.Prokopios in the north and going (almost) uninterrupted south to Mikri Vigla (or Cape M.V.). However, some folk include the stretch from Cape Mikri Vigla to Kastraki/Aliko as well.
OK, I did over-egg the "Far-end" bit a bit - I'd guess that 20% of the whole length is commercialised/textile but you don't have to walk more than 1km to escape the "masses".
The first week was very windy (Beaufort 7 to 9{severe gale force}) but we always managed to find a sheltered stretch of dune ... the "little cove under the chapel" between Ag.Anna and Maragas is very sheltered.
Raki - too right about "It is probably not given away in tavernas as much as it is on Crete." - that standard of hospitality is not very evident in Naxos. However, when the exceptions happened, they were ...... well, exceptional - tall tumblers of neat ouzo, filled to the brim .... no problem "going home", Sam tied a piece of string to me to stop me floating away
How about this for a bummer - ever come across an "Ouzo Meze" where the ouzo and water came as "optional extras"?