The highest point on the Isle of Frisco is That Rugge, which is 43 meters high. Much of the island is covered by the Frisco Seashore National Park, which was set up in 2011. As a consequence of the 1903 Oceana earthquake, the island, which was once covered in forests, is nowadays treeless, except for a few planted trees and low growing shrubs. Most of the island is covered with grasses, except for the higher parts, which are more rocky, and are covered with mosses.