The Kerry Way is a 214-kilometre long-distance walking trail that circles the Iveragh Peninsula, beginning and ending in Killarney. The route passes through Kenmare, Sneem, Waterville, Cahersiveen, and Glenbeigh before returning to Killarney through the Black Valley and the national park. Most walkers take eight to ten days for the full circuit.
The sections around Killarney and through the national park are among the most accessible and the most dramatic. The route through the Black Valley to the head of the Upper Lake is a two-day section that most walkers do on its own — there are no roads in the Black Valley and the only accommodation is a hostel. From Killarney, the trail begins at Killarney House and immediately enters the national park.