Chester-Rock Ferry is pretty boring, especially in summer.
The line is mostly in a low cutting south of Hooton, and north of there is between continuous rows of tall lineside poplars obstructing the view.
You just get a quick view towards Wales crossing the River Gowy and SU canal north of Bache, and a glimpse of the Liverpool waterfront as you leave Rock Ferry before going underground.
The West Highland line also suffers from tall lineside forests limiting the view, on what could be a spectacular section between Helensburgh and Crianlarich.
But HS2 promises to be super-boring, with 36 miles of tunnels and lots of cuttings/greenways, not to mention the sound and visual deflectors on the few open sections. I think the first view northbound will be over the Colne Valley viaduct.