Hello, i would like to ask you how many days does it take to reach santiago from Coimbra through Porto coastal. What i mean is i found many maps where are marked alberques in most common towns on the way, but are there alberques along the way like every 5-10km? Some day acording to some people you walk 30km and some day just 17km, so 47km is quite walk in case i want to speed up my journey. But can you acutually walk like 40km? will there be place where to sleep or do you have to follow those itirenaries . I have only limited time to do my walk because of my job, i got 16 days to reach santiago from Coimbra so im asking if its doable withou pushing myself over the top. MANY THANKS. Buen camino!