Bonjour and how nice that you are planning to hike while on the island!
I looked it up, and it could be that the E2 footpath section between Galway and Larne isn't officially established yet. If you'd like to find other hiking trails on the island, I'd suggest visiting the
Sport Ireland website (which has both GPX and PDF maps available for free).
Furthermore, you'll find detailed topographic maps on the
Tailte Eierann website. Here's more information about
hiking in Ireland as well.
Are there other hikes you'd like to go on during your time with us?
A bientôt,
Antoine