There's an old postcard being shared here on Facebook of Barry Railway cruises across the Severn Estuary and the question being asked as to whether a service could / should resume.  One commentator suggested that bus and rail links are needed.

At the Barry end, the line that terminates at Barry Island station used to continue on through a tunnel to Barry Pier station; last steamer called there in 1971 and the station officially closed in 1976.  Like so many seaside and other branch lines, cut back.

Notable on the advertising postcard - just how many of the locations served across the channe in England no longer have a rail link - Clevedon, Burnham, Lynmouth.  Two more have a rail link that's disconnected for all but occasional used from the national network - Minehead and Watchet.  And the final destination - Weston-super-mare does still have a station. Looking at old maps, railway tracks used to run closer to the town, but was that a goods yard or terminal platforms?



Is there any scope for a cross-Severn service again, and if so for what traffic and serving where?

As a commercial service to get from "A" to "B", I would wish to see traffic figures / projections; as a leisure trip perhaps via Lundy ...

Time savings would be so hard to demonstrate at the sort of frequency involved as the wait for the scheduled service unless frequent would, I suspect, outweigh any gain in the actual transit time.  And Ilfracombe is not exactly motorway connected.

Ilfracombe isn't all that easy to get to, though.  I know the town and surroundings are a majour tourist area, but it's not well populated for around 35 weeks a year

If only there was a railway there

In years gone by, there was a regular shipping service between Minehead and South Wales, this conveyed coal to the Minehead gas works, and bagged coal for household use.
Gas production ceased decades ago, but the gas holders remained until recent years. Almost no trace remains today, but the location is still known as "gas works beach" by anglers. It was on the edge of town, past the lifeboat station.

Seagoing sailing barges were used, and later small steamers. Passengers and livestock were carried in return for a suitable gratuity. The vessels used were not licensed to carry passengers.