It has been suggested that this name was 'prompted by a desire to demonstrate W[elsh] linguistic ownership of a popular tourist attraction and a concern that Rhaeadr y Wennol would be perceived as a deferential translation of what came to be the better known name Swallow Falls'.

[2] In 1913 the second Lord Ancaster, the landowner, gave the Swallow Falls to the local council, who decided to charge for visiting it in order to pay off some of the £15,000 debt incurred through the installation of water and electricity supplies to the village.

Once the debt of costs of installation was cleared the parish retained the fee, resulting in Betws-y-Coed having the lowest rates in the country.

A writer in the Yorkshire Post and Leeds Intelligencer on 17 January 1933, described the waterfall as coming "over the rocks in a perfect torrent, peerless white in the dusk.

"[4] In 1939, Richard Morris, the former chairman of the local council, was charged with making false entries in the upkeep of the tolls.