The annual Lake Padden Triathlon is wrapping up its second day of competition on Sunday, June 28. Bellingham Parks and Recreation issued a reminder Saturday that the West End parking lot at Lake Padden Park will be closed from 4:30 a.m. to 4:30 p.m., and cyclists will be on Lake Samish Way, West Lake Samish Road, East Lake Samish Road, and portions of Nulle Road throughout the day.

The Padden Triathlon is organized by the City of Bellingham and is one of the longest-running events on the Pacific Northwest triathlon calendar. The race offers both a long course and a short course, drawing competitors ranging from seasoned triathletes to first-time participants. The event includes an open-water swim in Lake Padden, a road bike course through the neighborhoods south of town, and a run around the lake.

The bike segment is what most affects Sunday drivers. Cyclists travel along Lake Samish Way, which connects to I-5 south of Bellingham, and continue on the roads skirting West and East Lake Samish. Drivers in the area are asked to slow down, give cyclists a wide berth, and expect brief delays where course marshals are managing intersections. The road closures and cyclist activity are expected to clear by mid-afternoon as the short course finishes up.

Lake Padden Park, located at 4882 Samish Way, is the hub for the event. The West End lot closure means that casual visitors to the park on Sunday morning will need to park elsewhere and walk in, or plan their visit for after 4:30 p.m. when the lot reopens. The park itself, including the trails around the lake, remains open to walkers and joggers during the event, though course marshals may redirect foot traffic in some areas during active race segments.

The triathlon is a beloved fixture in Bellingham's outdoor recreation culture. The Bellingham Triathlon Club supports the event and serves as a resource for local athletes training for multisport competitions throughout the year. The Lake Padden course is considered one of the more accessible triathlon venues in the region, with a calm lake swim and manageable road distances that make it approachable for newer competitors.

Spectators are welcome at the park to cheer on participants. The lake loop trail offers good vantage points for the run segment, and the transition area near the West End is where most race activity concentrates. Families bringing kids should be aware of active cyclists entering and exiting the transition zone through the morning hours.

For drivers who regularly commute on Samish Way or Lake Samish Road on Sunday mornings, the recommended approach is to allow extra time or plan an alternate route through Chuckanut Drive or I-5 until mid-afternoon. Full road closure details are available through the city's race information page.

The Padden Triathlon is just one of several major athletic events happening in Bellingham this weekend, alongside the Chuckanut Foot Race on Sunday morning. Combined, the two events are expected to bring several hundred athletes and their supporters into the south Bellingham area for much of the day.