Home EuropeAzores Experience the Caldeira Velha Hot Springs

Experience the Caldeira Velha Hot Springs

by Andy Vanr

Caldeira Velha is an amazing hot springs experience in central Sao Miguel Azores.  Unlike the more famous thermal pools at Furnas, the pools at Caldeira Velha are in a lush green valley of tropical forest.  Relax outdoors in this beautiful natural landscape.

What can I do at Caldeira Velha?

The number one reason people visit Caldeira Velha Natural Monument is to soak in the naturally-heated thermal pools.

People in Caldeira Velha thermal pool
Most visitors relax in the Caldeira Velha Thermal Pools.

Caldeira Velha Thermal Pools

There are three pools. Pool temperatures range between 24C and 38C degrees. Choose your temperature, relax and enjoy the lush forest setting. It was raining during our March visit, which made the pools a lovely, soothing escape.

The pool furthest from the entrance is the coolest pool ranging between 24C and 28C degrees. The Caldeira Velha waterfall tumbles into this upper pool adding warmed water from the valley sides. Like an infinity pool, the water overflows into a stream below. This stream feeds the middle pool.

Person resting on Caldeira Velha upper pool wall
Upper pool’s edge is like an infinity pool with the water flowing over the side to the stream below.
Person by waterfall Caldeira Velha
The waterfall is at the back of the upper pool.

Pool temperatures increase as you move from upper to middle to lower pools. The lower pool is between 35C and 38C degrees.

The pools’ water comes from the area’s hot springs and valley runoff. This water is very iron-rich so wear dark colours to avoid accidentally dying your clothes an orangey-brown. Several hot springs bubble to the surface near the pools but these are not accessible. The signs note temperatures of 60C to 100C degrees.

Sign warning water temperature Caldeira Velha hot springs
Warning signs note the boiling water temperature of the hot springs.
Caldeira Velha hot springs
The boiling water from the hot springs mixes with the cooler runoff water creating the perfect pool water temperatures.

After a relaxing soak, visit the adjacent wood-sided building which compliments the beautiful forested landscape to learn about area’s volcanic story.

Caldeira Velha Environmental Interpretation Centre

The exhibits explain the volcanic formation of the Azores islands concentrating on the local area and nearby Fogo Volcano. Learn about the recognition of the Azore islands as a UNESCO Geopark, the Caldeira Velha Natural Monument, Serra de Água de Pau Protected Area and the Fogo Lake Nature Reserve.

Person inside Caldeira Velha Environmental Interpretation Centre
There are lots of exhibits about the local area at the Caldeira Velha Environmental Interpretation Centre.

Caldeira Velha Natural Monument

Found on the north side of the Fogo volcano, the protected area is a steep-sided river valley about 500 metres deep by 300 metres wide. The lush green habitat has several endemic Azorean plant and animal species.  Fumaroles and hot springs provide heated iron-rich water to the set of pools nestled midway along the valley floor.

The area’s geologic and biologic diversity is protected for future generations by designation as an Azores Geosite and a Sao Miguel Natural Monument.

People in Caldeira Velha thermal pool
The middle pool at Caldeira Velha Natural Monument
People entrance trail Caldeira Velha
The trail from the entrance to the pools is about 300 metres long.

How do I to get to Caldeira Velha?

The quickest route to Caldeira Velha Natural Monument is from the north on the regional road EN5-2A.

From the center of Ribeira Grande it takes about 10 minutes to travel the 7 kilometres south to Caldeira Velha on EN5-2A.

Many tourists make the trip from Ponta Delgada.  From the city, the journey is about 30 minutes covering 20 kilometres. Look for the EN3-1A on the northeast side of Ponta Delgada and follow it northeast to ER3-1. Head east to EN5-2A then head south to Caldeira Velha.

Access to the parking area is before the entrance. Signs in the lot direct you to the path through the forest to the entrance gate.

After paying admission, walk about 300 metres to the thermal pools.

Caldeira Velha Map

Caldeira Velha Map Sao Miguel Azores
Caldeira Velha Area

Know Before You Go

What are Caldeira Velha’s open hours?

In the summer it is open 9:00 to 21:00. Winter hours are 9:30 to 17:30. April and October Caldeira Velha is open 9:00 to 20:00. The last entry is 30 minutes before closing.

Is there an entrance fee at Caldeira Velha?

Yes, there is an entrance fee and an additional charge to use the pools. The fee allows you to enjoy a 2 hour stay at Caldeira Velha. All pool users are given a wrist band which must be worn in the pools.

There is no charge for children 6 years of age and younger. Children between 7 and 14 years of age and people 65 and older pay half of the adult fee.

In 2020, single adult fees were €3 to enter and €5 to enjoy the pools.

Are there change rooms and showers at Caldeira Velha?

Yes. There are toilets, change rooms, showers and lockers.

Is food available at Caldeira Velha?

Light snacks and non-alcoholic beverages are available for purchase in the Environmental Interpretation Centre.

What is the pool temperature at Caldeira Velha?

The three pools range in temperature between 24C and 38C degrees.

Is there swimming at Caldeira Velha?

The pools are not very deep or wide and are designed for soaking. They are usually too busy to allow swimming.

Is there shopping or a gift shop at Caldeira Velha?

There is a small gift shop in the Caldeira Velha Environmental Interpretation Centre.

What is the weather like at Caldeira Velha?

This area can be enjoyed no matter the weather.  You can always have a look at the nearby Lake Fogo web camera to give you an idea of the current weather in the area.

Can I take an organized Caldeira Velha tour?

Many Sao Miguel tour companies offer tours to Caldeira Velha National Monument and area.

People in Caldeira Velha thermal pool
Experience Caldeira Velha

Day Trip: Lagoa do Fogo

For the perfect day trip, add a visit to nearby Fogo Lake. 

Beautiful Lagoa do Fogo, surrounded by dense vegetation, sits in the crater of the Fogo Volcano. Viewpoints along the road south of Caldeira Velha provide panoramic views of the lake and the surrounding countryside.  You can even hike down to beach.

You’ll find all of the details on visiting Lagoa do Fogo in our article. Just click on the picture below.

Lagoa do Fogo


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