Secret Wave Surf Camp is located in Seignosse, about 35 minutes drive from Biarritz airport or 1.5 hour drive from Bordeaux-Mérignac airport. You can also catch a bullet train to Bayonne (30 min) or Biarritz (35 min). It can also be interesting to check the flights to Bilbao, as you can sometimes get better deals.
Local taxis and a rental car providers operate from the airports and train stations. You can also catch a shuttle bus.