Did not succeed in persuading Spain to give me a two-week visa and have
to be out of Schengen on 4 July. Trying to avoid flying due to the
weight of my bag.

Getting inconsistent results from Rome2Rio, so wonder whether anyone has
knowledge (i.e. NOT guessing) about bus/train/ferry.

Best thing I have so far is buses Burgos to Rennes, train to Cherbourg,
then ferry to Dublin but the schedules are such that one missed
connection will result in a Schengen overstay.

Planes are easy, but the choices are very expensive ticket with some
baggage fees or cheap ticket with HUGE baggage fees.

--
Wes Groleau