So nice to see the variety of options, and as can be imagined, there are many more! It could be an opportunity to try out the poncho, if you have one, OP! Green grass isn't green by magic.
The hop-on/off bus would be a fair option if it is a rainy day, the front upstairs is more or less covered in.
Bernadette Cunningham has written a magnificent book, cited in the attached link, about the connection of Irish pilgrims to Santiago de Compostela.
Irish Camino history: the centuries-old journey to Santiago de Compostela
A ship carrying 400 pilgrims from New Ross was recorded in 1473
www.irishtimes.com
It is a treasure, and there are a few free copies in the Information Centre
Edit: this is also available via a library...
https://www.caminosociety.ie/.
Meantime, if you can access A Camino Voyage, it is a wonderfully made film, and while Bernadette punctures the idea of small open boats, it is a true and recent story...
Too many stories, have to stop!
If you are running late, a taxi back to the airport will cost you up to €40