Trails · Moderate

Caldeirão

A short loop into Corvo's volcanic crater, past wetlands, two lakes and free-roaming cattle.

CorvoOfficial trail code PRC02COROfficial trail status: Status unknownUpdated 18 October 2026
The green volcanic crater of Caldeirão, Corvo's dramatic caldera.

Photo: Jules Verne Times Two · CC BY-SA 4.0

The loop starts at the Caldeirão viewpoint, where a tunnel opens onto the crater interior; according to local tradition, the lake and its few cones recall the nine islands of the Azores. The path winds down through peat moss into the crater, and at a large boulder it turns right to go counterclockwise around the rim, with smaller trail markers in places, sized to survive the island's free-roaming cattle, horses and goats that share the ground.

Inside, a wetland system and two lakes are fed by rain and by water held in the thick peat on the north-facing slopes, among the country's oldest and largest peatlands. The path passes Poço da Velha and skirts a swampy area before returning to the big boulder and climbing back out to the viewpoint where the walk began.

At 4.8 km with about 190 m of climb, this loop into the crater and back out takes around two and a half hours.

Elevation · from the official GPX

Up and down the trail

Hover or drag along the chart — the dot follows on the map.

gentle < 8%steady 8–15%steep > 15%+191 m up · −193 m down · 399 m → 560 m

Plan your walk · MET Norway & IPMA

When to go

Pick a start time. We forecast where you'll be each hour — 399 m at the lowest point, 560 m at the top.

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Official facts, our words

What to know

Start & finish
Caldeirão viewpoint
Safety
The crater floor is boggy wetland, and the lake level can rise to the trail itself, so keep to the higher, drier line well away from the banks; give the free-roaming livestock plenty of space.
When to go
Go on a clear day for visibility and firmer footing; the wetland is at its boggiest and the lake highest after wet spells.

The route

TrailheadHigh point500 m
Directions

Trail facts

Difficulty Moderate
Length
4.8 km
Duration
2 hr 30 min
Elevation gain
191 m
Route
Circular
Highest point
560 m
Steepest descent
23% at km 0.0
Start
Caldeirão viewpoint
Finish
Caldeirão viewpoint
Permit
Not required
Trail code
PRC02COR

Route and facts © Azores trails network (visitazores.com)

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