Can only speak about biaritz
Flew down there three up in a AA5A a couple of years ago. Clearing customs at La Rochelle.
Found Biaritz to be a wonderful and very quiet for late August.
Upon arrival, after landing. Simply tied up plane, walked through arivals and jumped in cab for town. had two glorious night in beach hotel, great sea food and golden beaches.
Upon return to terminal could not gain access to apron so had to go to small building at western end and exec office. Paid very reasonable landing fee and given minibus ride back to plane.
GA apron is next to fuel farm, but had to telephone from fuel farm to get refueler out.
Upon departure had to wait at hold for some time for a 146 stuck on the threshold. After an age in the heat he was off and received a passing message on the tower freq from him 'sorry for the delay delta oscar' good old BA.
As for the mountians, they are a reasonable distance from the field, but look daunting. <img src="tongue.gif" border="0">
<img src="tongue.gif" border="0"> <img src="tongue.gif" border="0">