Originally posted by Fozzie
Does anybody know how to gain access to the Phoenix Park Tunnel and, if so, would anybody be interested in joining me on an adventure?
You can get access via the closed Cabra cement depot. Having said that, I wouldn't recommend walking through it as it is used by trains (freight and rolling stock movements to/from Inchicore).
Even though I possess an IE high visibility vest, I have never done it and would think twice about doing so. There is, however, a shorter tunnel at Glasnevin underneath Des Kelly's carpet store. As the line is currently closed for relaying, it would be safe to walk through, although still illegal to trespass.
A little bit outside Dublin, is the disused Bray Head No. 1 Tunnel (more correctly the Brabazon Tunnel), abandoned in 1876 after a derailment.