The lighthouse is constructed from reinforced concrete and stands 12.3 meters tall.
It is the only lighthouse in Taiwan that operates entirely on solar energy.
The island is formed primarily of andesite, a volcanic rock, resulting in its distinctive sharp, rugged profile.
The lighthouse tower is specifically painted with black and white horizontal stripes to improve visibility for ships against the island's rocky background.
The island is often referred to as the 'Taiwan Long Island' due to its proximity and shape relative to the mainland.
Keelung Islet Lighthouse is a functional navigational beacon situated at the summit of Keelung Islet, a volcanic island located 5 kilometers off the coast of Keelung City. The site features a steep, paved hiking trail that ascends through wooden boardwalks and natural rock formations to reach the lighthouse tower. Originally constructed in 1980, this black-and-white octagonal tower is the oldest lighthouse in Taiwan to utilize solar power. The surrounding terrain is characterized by craggy cliffs and endemic flora, including the Keelung wild lily. Visitors can view the lighthouse from the peak, which offers panoramic views of the East China Sea and the northern coastline of Taiwan.
From the trail switchbacks just below the lighthouse for a vertical framing of the tower against the sea.
Bring ample drinking water and sun protection as there is minimal shade on the trail.
Wear sturdy, closed-toe walking shoes to manage the steep, uneven steps.
Carry a light rain shell, as weather conditions on the island can shift rapidly compared to the mainland.
Attempting to climb during high wind warnings or typhoons, as the island is exposed and ferry services will be suspended.
The island is closed to visitors during the winter months due to rough sea conditions and is generally restricted to permit-only entry during the peak season.
Stay strictly on designated boardwalks to protect fragile endemic plant species; do not remove any volcanic rocks or vegetation.