Helford Passage Art Prints of Cornwall by Cornish Artist John Dyer. Vintage Style Poster Print Art for Homes. Cornwall Art GalleryCornwall art gallery prints of Cornwall featuring the Helford Passage by Cornish artist John Dyer. This amazingly colourful archival and museum quality art print by John Dyer features one of Cornwall's best loved locations the stunning cliffs and view along the Helford River to the Helford Passage. A couple dances on the cliffside while children play in the wildflowers of the meadow overlooking Helford Passage. Small boats and dinghies fill the beach