Bainbridge Island’s beloved spring running event featuring 10K, 5K, and Kids Fun Run courses through a scenic wooded route from Battle Point Park, along the Forest to Sky Trail, and looping among the towering firs of the Grand Forest. All proceeds benefit trail development for four new signature trails around Bainbridge Island. The event is organized by the Bainbridge Island Parks & Trails Foundation.

Dates: May 9, 2026

Cost: 10K early-bird $35, standard $45; 5K early-bird $30, standard $40; Kids Fun Run free

More Info: https://biparksfoundation.org/event/trillium-2026/