The following trips feature caves:
(Future tour still under development) Mid Atlantic Volcanoes - visits Gruta do Carvao lava tube on Sao Miguel Island, Algar do Carvão volcanic pit on Teciera Island this pit is 90 m deep and is literally the inside of a volcano!, Gruta das Torres lava tube on Pico Island.
Volcanoes & Famous Fossil Sites - visits the Laichingen Pothole cave in the Swabian Alb Geopark.
Ocean Crust and Mountains of Mantle - visits the Al Hoota cave, the first and only showcave in Arabia.
The Birth of Geology - visits Fingal's Cave.
(Future tour still under development) Gold, Diamonds and Mammal-like Reptiles visits - Sterkfontein Caves in the Cradle of Humankind World Heritage Site.
Jurassic Coast, Wales & the Complete Geological Timescale - visits Gough Cave in Cheddar Gorge.
Day Trips - Porth y Ogof Cave is visited on the Fforest Fawr Geopark trip and the Heart of the Park and Waterfall Country Sightseeing Tour.