The next six miles, between the gorgeous village of Llangrannog and Cwmtydu Beach, cuts into the side of a sloping mountain, presenting an epic cerulean canvas of sea that is a brilliant vantage point for spotting bottlenose dolphins.
But, with summits still in sight, we'll soon turn to the Sustainable Development Goals, a new and ambitious mountain presenting similar challenges and loftier targets.
Scrabbling around in these mountains presents more challenges for our old bangers: at one point four vehicles have to form a chain with tow ropes to get our increasingly useless Nissan out of a river.
But the winter storms of the high mountains present a mortal threat that demands an immediate response.
From the east the mountains present relatively slight but broken relief; from the west they appear as formidable escarpments whose benched flanks drop into deep canyons called barrancas.
These mountains present one of the continent's highest plant diversity indices deriving from their geographic and historical circumstances throughout the Quaternary.
The mountains present fractured bedrock aquifers, which consist of fractured metamorphic and igneous rocks, as well as local karstic aquifers (Koontanakulvong 2006).
