Little did we know that basalt can create so many styles and features. Penghu indeed opens our eyes!Excepting Flower Island formed of porphyrite and quartz porphyrite, the Penghu archipelago are volcanic islands composed of basalt magma. Erosion and sea alluvium over years have shaped the currently magnificent geological landscape.

Tungpan Island, named because it looks like barrel plates, is composed of walls of basalt columns. These spectacular formations have given the island its nickname as "Penghu's Yellowstone Park," especially the sea-eroded plain, known as the "Lotus Terrace," on the southwest side of the island.Chishan Island and Tingkou Island are basalt preserves. The rows of packed hexagonal basalt columns that form a high sea cliff and unusual geological basalt scenery are so majestic. This unique landscape has caused Tingkou Island to be named as "Micro Kueilin".

The northern coast of Yuanpei Island and a basalt column on the eastern side is known as the "Brush Pen and Inkstone" because of similar shapes. The scenery is unique.

Giant Lion Scenic Area on Chimei Island features a giant stone lion sitting atop a cliff. Lungcheng Gulf on the north side of the Island is named for its winding formations resembling a dragon.

Furthermore, the Whale Cave on Hsiaomen Island, Chimen in Shimen Hsiang and basalt columns in Tayeh are all worth a visit. The grandeur of Penghu basalt, like elaborate workmanship of engravers, deserves your appreciation and praise.