Tropical seas & deltas lay down sandstones, slates & limestones. Walk it at Great Hangman, Ilfracombe, Morte Point, Torbay headlands.
Deep-water sandstones & shales later folded into dramatic chevrons — Millook Haven, Crackington Haven, Bude cliffs.
Continental collision crumples Devonian–Carboniferous strata — Hartland Quay, Millook.
Granite batholiths & mineral veins; desert red beds around Dawlish/Teignmouth; St Agnes, Botallack–Levant.
Fossil-rich strata from Sidmouth to Old Harry Rocks — Sidmouth reds, Lyme Regis fossils, Durdle Door & Lulworth.
Slice of ancient ocean crust — Kynance Cove, Lizard Point.
Sea-level swings, coastal erosion and dunes — Braunton Burrows, Perran Sands.