A journey through the magma chamber of an early Palaeogene volcano, with visits to significant localities of igneous, sedimentary and metamorphic rocks

Outcrops of the Blackhall Limestone and disused quarries and, if time permits, a visit to the lime kilns on the foreshore.

Terrestrial fossils from Romer's Gap and a rich fauna of marine fossils.

Lower Carboniferous sedimentary rocks, Upper Carboniferous sills and late glacial and postglacial deposits

A classic east-west cross-section through folded Dalradian metasediments, part of the Appin Syncline

Carboniferous fluvial, deltaic and shallow marine strata pierced by Carboniferous vents (diatremes) and the interplay between volcanism and sedimentation

Ordovician volcanics, with evidence for giant ash-flow eruptions, and large-scale Caledonian folding, all set in Snowdonia’s wonderful glacier-carved mountain scenery.

Carboniferous, Permo-Carboniferous and Palaeogene igneous rocks, columnar-jointed sandstone, Dalradian slates, schists and grits, along with the Highland Boundary Fault and Highland Border Complex.

Devonian sedimentary rocks and igneous structures, Clyde Plateau Lavas, glacial erratics, beach pebbles and post-glacial landscape features

Carboniferous limestones, fossils, lavas and tuffs