While the advice is good as another option, IMHO it presents an extra headache in the "extra step.
- Get to Biarritz (presumably by plane)
- Take a bus from Biarritz to Bayonne
- Take a train (or substitute bus) from there to SJPdP
We've all been newbies and IMHO that's stressful enough (esp. if one didn't do the (ahem) pre-requisite training trip to Europe
![Wink ;) ;)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
![Smiling face with halo :innocent: 😇](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f607.png)
) So the simpler - the better
Hence:
- Fly to Biarritz and
- do book Express Bouricott
or
- take a train to Bayonne and
- Take a train (or substitute bus) from there to SJPdP
now to be fair I guess the 2nd option predicates on how well one navigates a city in a foreign country (for the sake of an argument I will presume no knowledge of the city or the language; just to make it a bit more shall we say...interesting)