Natural Wonders: Waterfalls & Caves
This collection highlights geological landmarks across the Azores and the Algarve. It includes the Gruta de Benagil sea cave with its natural skylight and the Gruta das Torres, Portugal's longest lava tube. On São Miguel, thermal activity defines sites like Ponta da Ferraria’s oceanic hot springs and the iron-rich pools of Caldeira Velha. The list also features secluded waterfalls like Salto do Cagarrão and the thermally-fed Cascata da Ribeira Quente, illustrating the diverse volcanic and coastal formations of the Portuguese landscape.
A Caldeira Velha
Thermal waterfall located on the slopes of the Fogo Volcano. The water is naturally heated by geothermal activity and flows into a pool surrounded by tree ferns and Macaronesian forest.
B Gruta de Benagil
A coastal sea cave in the Algarve accessible only by water. It features a large natural dome with a circular opening at the top and a secluded sandy beach inside.
C Caldeira Velha
Geothermal pools with iron-rich waters maintained at temperatures between 25°C and 39°C. The site includes an Environmental Interpretation Center focused on the volcanic origin of São Miguel.
D Ponta da Ferraria
A unique coastal formation where geothermal springs heat the ocean water within a natural rock pool. The warm water is best experienced during low tide.
E Gruta do Carvão
The Gruta do Carvão is an ancient lava tube located on the outskirts of the municipality of Ponta Delgada on the island of São Miguel in…
F Ribeira Quente's Waterfall
Located between two road tunnels, this waterfall is fed by springs that pass through volcanic rocks, resulting in naturally lukewarm water temperatures.
G Salto do Cagarrão
A secluded waterfall on São Miguel Island accessible via a hiking trail. It offers a quieter alternative to the nearby Salto do Prego.
H Cave of Towers
Gruta das Torres, is a lava cave, a geological formation of volcanic origin formed from the flow and cooling of subterranean magma rivers.
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