The only land route to the park is via Herman Leirer (Exit Glacier) Road, which ends at Exit Glacier. Boats leaving Seward for half-day tours and beyond are ample. Beyond that, access is limited, unless you charter a boat or airplane, or arrange for a tour with one of the local companies. If you take a day trip on a tour boat out of Seward, it's highly likely you'll see frolicking sea otters, crowds of Steller sea lions lazing on the rocky shelves along the shore, a porpoise or two, bald eagles, and tens of thousands of seabirds. Humpback whales and orcas are sighted occasionally, and mountain goats wander the seaside cliffs. The park's coastal fjords are a favorite of sea kayakers, who can camp or stay in reserved public-use cabins.

One of the park's chief attractions is Exit Glacier, which can be reached only by the one road that passes into Kenai Fjords. Trails inside the park lead to an overlook of the vast Harding Icefield.

Before venturing out into the far reaches of the park, gather as much data as possible from the locals concerning the weather, tides, and dangerous beaches. Once you leave Seward, you're a long way from help. Backcountry travelers should also be aware that some of the park's coastline has been claimed by local Native organizations and is now private property. Check with park headquarters to avoid trespassing on Native land.