H/T to my brother for bringing to my attention the existence online of the Irish Travel journal – a series produced in the early years of the Free State.
One such snippet that is relevant to this site is the use of the filled in Broadstone branch of the Royal Canal as a designated car parking lot during the Eucharist Congress held in 1932.
The journals can be downloaded at https://arrow.tudublin.ie/irtourjap/10/. The information in question is in the June 1932 edition.