Lagoa do Fogo: Complete Guide to São Miguel's Wildest Lake

If Sete Cidades is the famous lake of the Azores, Lagoa do Fogo is the wild one. Less visited, more remote, and of a beauty that seems untouched by human hands. Hidden inside the Água de Pau volcano crater at 580 metres altitude, this nature reserve has waters of such intense blue they seem unreal — surrounded by a dense blanket of endemic species that wraps around it like a green mantle.

What is Lagoa do Fogo?

Lagoa do Fogo fills the crater of the Água de Pau volcano, the youngest on the island of São Miguel at around 15,000 years old. At 580 metres altitude, it is the highest lake in the Azores and also one of the most protected: the entire surrounding territory is a Partial Nature Reserve.

The name "Fogo" (fire) refers to the volcanic origin of the crater, not to any current activity. The lake stays cold even in summer and its shores are inaccessible without completing the full trail.

How to get to Lagoa do Fogo

By car (October to mid-June)

Via the EN5-2A, the mountain road linking Lagoa (south) to Ribeira Grande (north). Very winding and narrow — drive carefully. Two viewpoints with free parking along the road. From Ponta Delgada, approximately 21 km and 30 to 40 minutes.

By shuttle (mid-June to end of September)

In summer, car access is prohibited between 9am and 7pm. The shuttle departs from car parks at the base of the mountain and costs €5 (free for children under 6 and Azorean residents). Timetables are available on the VisitAzores app.

Tip: In summer, arrive at the shuttle departure point before 9am or plan your visit for after 5pm to avoid queues.

The PRC02-SMI trail

The "Da Praia to Lagoa do Fogo" trail is the only way to reach the lake shore. It begins in the village of Praia (north coast) and is 11 km long and linear. Average time is 4 to 5 hours one way — plan at least 6 hours in total.

The trail is low-to-medium difficulty but has significant cumulative elevation gain. Arriving at the lake shore, after walking through giant ferns and dense vegetation, is a moment that stays with you.

Important: The trail is linear — not circular. You need transport at the arrival point or must return the same way.

Alternative: the roadside viewpoint

If you do not have the fitness or time for the full trail, the viewpoint next to the EN5-2A already offers a fantastic view. Many argue that the panoramic view of the entire lake, with the whole crater visible, is even more beautiful from the viewpoint than from standing on its shore.

The nature reserve: endemic flora and fauna

The area around Lagoa do Fogo is one of the last refuges for the endemic flora of the Azores. Species that exist nowhere else in the world grow here, such as Picconia azorica (Azorean privet), Ilex azorica (Azorean holly) and various wild orchids. The priolo (Pyrrhula murina) and several endemic finch species find their habitat here.

Practical tips

• The weather changes very quickly: fog can cover the lake in minutes. Always bring a rain jacket.
• Waterproof footwear with good grip is essential for the trail, especially after rain.
• There are no facilities at the lake shore: no restaurants, no toilets. Bring everything you need.
• The lake water is very cold even in summer — it is not suitable for swimming.
• Photography is best in the early morning hours or late afternoon.
• Leave no trace: the nature reserve is a fragile ecosystem.

When to visit

The best time is May to October. May and June are excellent: the vegetation is lush, the endemic flowers are in bloom, and there are still few tourists. In winter there are perfectly clear days when the lake shines like never before — and you are likely to have it almost to yourself.

Lagoa do Fogo requires a little more effort than other tourist spots in São Miguel — and it is precisely that effort that makes it special.