The Garrotxa region in the heartland of Catalonia has this walk around a volcano in Spain. There are many dormant volcanoes, but apart from the land relief, there are no volcanic tell-tales. It is so green and lush in vegetation with an interesting beech forrest that has thrived on the lava outflows and fertile soil.
The forrest surrounds a a worker cooperative established by a Spanish psychologist called Christopher Columbus. He did this to provide a greater life purpose for locals suffering from mental illness. This actual non-profit business earns €16m per year but fundamentally changes the lives in a positive way.
This is a map of the region of La Garrotxa.