World Tour 24 hr

The Japanese occupation site on the island is now considered a National Historic Landmark (the highest level of recognition accorded to historic sites in the US) and is protected under federal law. The island is also a part of the Alaska Maritime National Wildlife Refuge (AMNWR) and contains the largest colony of Least Auklets (over 1,160,000 birds) and Crested Auklets. Research biologists from Memorial University of Newfoundland have been studying the impact of introduced Norway Rats on the seabirds of Kiska since 2001.

Much of the aftermath left behind from World War II is still evident in Kiska. The slow erosion processes on the tundra have had little effect on the bomb craters still visible both from the ground and in satellite images on the hills surrounding the harbor. Numerous equipment dumps, tunnels (some concrete-lined), Japanese gun emplacements, shipwrecks, and other war relics can be found all untouched since 1943.

In 1983, a memorial plaque was placed on Kiska by the 87th Mountain Infantry Regiment. The plaque's inscription reads:

To the men of Amphibious Task Force 9 who fell here August 1943 placed here August 1983 by 87th Mountain Infantry Regiment.

On August 22, 2007, the submarine USS Grunion, which disappeared with a crew of 70 during World War II, was found in 1,000 metres (3,300 ft) of water off Kiska.