National Park Service director Jonathan Jarvis will provide his vision for the next 100 years of stewardship, community, and youth engagement during the unveiling of a new mural June 1 as part of a centennial celebration at Kenai Fjords National Park in Alaska.

Most of us arrive in a national park by car, truck, or perhaps train, and then spend our visit either walking or driving around, stopping at scenic overlooks, exploring history, or searching for wildlife. One mode of transportation not to be overlooked, though, is watercraft. Here are five incredible national park excursions by boat that are worthy of your consideration.

Spring break is commencing at colleges around the country, and for more than 200 students that means a trip not to the beach, but to a national park to participate either in the National Park Service Academy or an "Alternative Spring Break" program in parks.