As its been mentioned. I live in Burnham-on-sea. Theres been talk of a ferry from here to barry/newport in the past. There’s also some kind of floating bridge/energy project that comes up occasionally from a crackpot wanting investment.
(sidenote: in minehead someone had business with a a massive 6 or 8 wheeler thing that could drove out across the mud into the sea, then “drive” in the sea, and come back. randomly I was there when they reversed it into the supports for one of the listed buildings on the sea front and the service stopped soon after..)
As has been mentioned the Bristol Channel has one of the largest tidal ranges in the world, and its a pretty non-leisure boating area, but there is a yacht club in BoS. You dont stuff like canoes or paddle boards around here for good reason (whereas where my holiday home is in south devon/english channel they’re all over the place..)
A lot of the “beaches” are actually just sinking sand – it being a tidal estuary and all. Thats why week on week through the summer mostly **** from bristol, or **** in hire cars from birmingham watch the expensive shiny bits of metal disappear under the waves after either getting stuck hooning too close to the tide coming in, or parking and buggering off to see the fort on brean down. where they might ignore the no dogs off leads signs and lose that off the side too.. Cars usually get rescued the following day, sometimes dogs bodies are found.
Also, now the severn bridge is free now.. you wouldn’t save money on that either..