National parks in Alaska saw a 2 percent increase in visitors in 2011, according to preliminary figures.

The National Park Service says there were about 2.32 million visits to Alaska parks in 2011, an increase of about 50,000 from 2010. Final numbers should be released next spring.

Five parks -- Denali, Kenai Fjords, Glacier Bay, Klondike Gold Rush and Sitka -- account for about 90 percent of those visits. Kenai Fjords National Park is on the Kenai Peninsula. Glacier Bay National Park and Klondike Gold Rush and Sitka national historic parks are in southeast Alaska and are popular stops for cruise ship passengers.

Over 10 years, the most visits to Alaska parks were in 2007 with 2.63 million. The fewest were 2.15 million in 2002.