 At low tide, it is possible to walk across the mud flats of the Cook Inlet to reach Fire Island.Hikers occasionally attempt the 3.5-mile (5.6-km) trek from Kincaid Park, but the incoming tide can make the journey dangerous, and people have been known to drown.The island is dominated by forests similar to those found in the Alaskan interior, and bogs are found in poorly drained low-lying areas.