Hua Yu Island Introduction
The volcanic rock geology of the Penghu Islands is primarily basalt, with the only exception being Huayu Islet, which consists of andesite. Andesite is a type of volcanic rock formed from the rapid cooling of volcanic lava, characterized by high viscosity and slow flow, typically accumulating in a conical shape near the volcano, differing from the square mountain terrain formed by basalt. This island was formed approximately 65 million years ago and is the oldest and westernmost island of Penghu. Huayu Islet is located northwest of Wang-an and is home to nearly a hundred species of native plants, which is why it is named Huayu. Currently, the population is only a little over a hundred, as the area is rich in fishery resources due to the confluence of the Kuroshio Current and the Tsushima Current, with residents primarily relying on fishing for their livelihood. The eastern part of the island features Yandun Mountain, which stands at 53 meters above sea level, making it the highest point on the island. At the summit of the western part of the mountain, the Huayu Lighthouse is constructed, with a pure white tower built of reinforced concrete, serving as the westernmost lighthouse in Taiwan and an important landmark of Huayu Islet. Additionally, on the southeastern reefs, there are legendary "immortal footprints" of Lü Dongbin, with the left footprint perfectly aligning with the right footprint on Tiantai Mountain of Wang-an Island, although they are only visible during low tide!
Flower Island
