I'm hoping to pick up a credencial from the Accueil St Jacques at St Jean Pied-de-Port. Should I contact them beforehand?

No need. Provided you satisfy them that you are making the pilgrimage under your own steam (i.e. Without a support vehicle) they will issue you with a credencial on the spot (they make a small charge).

2." I have booked flights through cheap airlines and I have a very tight schedule when changing planes in London Stansted. Othervise I have only hand luggage (my sack) but I need to take along also my walking sticks (two, nordic style) and swiss knife.

Nowadays it is not possible to take those in the cabin anymore and there is no time to wait for luggage in London. Do you know if Accueil Saint Jacques would agree to keep my sticks and knife there in their posession, if I sent them by mail before I leave?" I think the Acceuil might be reluctant to keep these items for you (too many pilgrims to deal with).

I advise you to send the parcels to yourself at Poste Restante, 64220 St Jean Pied de Port and collect them there. (Take your passport and ask them to check both of your names). 3.

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