For guests staying at Golden Mermaid Villa who are looking to explore the hidden natural beauty near Lagoa, the Rota da Água (Water Route) trail is an absolute must-do. This scenic, circular path offers a fascinating blend of history and thrilling adventure just east of Lagoa, culminating in a spectacular natural wonder.

PRC 37 SMI Trail Quick Facts & Starting Point

• Location: East of Lagoa, São Miguel Island.

• Difficulty: Moderate (due to the tunnel and gorge crossing).

• Distance/Time: Approx. 3 hours to complete the loop.

• Start: The trail officially begins near a well-equipped park area, where you’ll find ample free parking and the local tourism office—perfect for a pre-hike map check.

A Journey Through Azorean History

The Rota da Água is more than just a hike; it’s a walk back in time. Much of the route follows the path of an historic aqueduct system, originally constructed in the 17th or 18th century. This ingenious engineering feat was designed to channel fresh water all the way to the Alcohol Factory of Lagoa, supplying the island’s essential industry.

Thrills and Adventures Along the Way

This trail offers several unique highlights that make it stand out:

The Dark Tunnel: Early on, you’ll encounter a captivating, pitch-black tunnel, roughly 50 meters long.

Pro Tip: This tunnel is a true adventure! Be prepared to crouch or bend over in certain sections, as the ceiling is only about 5 feet high. A good flashlight is essential! (It can also be muddy after rain, so wear appropriate footwear.)

The Gorge Crossing: Get ready for an exhilarating moment as you traverse a narrow footbridge that spans a steep, beautiful river valley. The views down the gorge are breathtaking and provide a memorable photo opportunity.

The Hidden Waterfall: The climax of the trail is the legendary “Janela do Inferno” or the “Window to Hell.” This is a stunning, narrow waterfall that emerges directly from a small cave entrance high up on a rock face. It’s a truly unique geological feature and a fantastic spot to pause and appreciate the power of nature.

Golden Mermaid Villa Recommendation

The Rota da Água hike is perfect for guests looking for a half-day activity that combines natural beauty, a little thrill, and a connection to the island’s past. Pack a bottle of water, your flashlight, and your camera—you won’t regret the adventure!

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Anthony “Tiger” Liu is an American expat and the operator of Golden Mermaid Villa and Longevity Habit retreat, where he shares a passion for the vibrant culture and nourishing lifestyle of São Miguel.