ferry ports

Without looking ... I can tell you the best way to get around in France is by train. So pick your favorite port and check out SNCF website for travel from point X to Bayonne.

502 Trains in France

SNCF is France's train system.

SNCF TGV trains provide high-speed service across France. You must have a reserved seat on TGV trains (you can reserve at the station just prior to boarding).

SNCF TER is a regional train system. You can't reserve a seat on TER trains.

SNCF Intercites trains are trains that cover areas without TGV service.

SNCF and Renfe operate a high-speed train that connects Paris Gare de Lyon direct to Barcelona Sants. This is a new service as of 15 December 2013.

SNCF connects with Renfe at Irun/Hendaye and Port Bou/Cerbère border crossings where there is break of gauge.

SNCF
http://www.sncf.com/en/passengers

SNCF TER (France regional train service)
http://www.ter-sncf.com/

SNCF - train schedule and tickets:
http://www.voyages-sncf.com/billet-train/horaires

SNCF Railway Map France
http://www.bonjourlafrance.com/france-map/sncf-map-large.htm

SNCF TGV Map
http://www.bonjourlafrance.com/france-trains/tgv-map.htm

Eurostar train connects London St Pancras International with Paris Gare du Nord.
http://www.eurostar.com/