Drive the Cascade Highway 20 from Bellingham to Winthrop on a private three-day guided tour that mixes roadside waterfalls, Diablo Lake vistas, and old-west charm. Designed for flexibility, the trip suits both active hikers and travelers who prefer quiet lodge time.
More ways to explore the area's outdoor wonders
You turn east on State Route 20 and the road begins to climb, the engine and conversation thinning as peaks push up around you. Waterfalls thread the slopes, the Skagit River cuts a ragged line through old-growth, and Diablo Lake flashes a jewel-blue glare that seems to dare you to stop.
Difficulty
moderate
Duration
3 days
Fitness Level
Suitable for most people who can manage several hours of walking across uneven ground and short elevation gains; options range from easy strolls to longer hikes.
Wildlife
History
The Skagit watershed has been occupied by Upper Skagit and related tribes for thousands of years; 20th-century hydroelectric projects and early logging shaped the modern landscape and communities such as Newhalem and Winthrop.
Conservation
Alpine and riparian zones here are sensitive to foot traffic and changing snowmelt patterns; stick to trails, pack out waste, and follow local guidance to reduce impact.
Reserve your spot on the 3-Day Private Guided Tour from Bellingham to Winthrop today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Confirm Highway 20 status
SR-20 is seasonal and can close for snow; verify road conditions and tour dates before travel.
Layer for alpine weather
Bring a waterproof wind layer and insulating midlayer — temperatures swing quickly at higher elevations.
Footwear for mixed terrain
Wear sturdy hiking shoes with good tread for waterfall loops and uneven lakeside paths.
Hydrate and sun-protect
High sun and dry valley air make hydration and sunscreen important even on cool days.
Daypack
Carries water, layers, snacks, and camera gear for roadside stops and short hikes.
Waterproof wind jacket
Protects against sudden alpine wind, rain, or spray near waterfalls.
Sturdy hiking shoes
Needed for wet, rocky trails like Gorge Creek Falls and lakeside viewpoints.
Sun protection (hat + sunscreen)
High-exposure viewpoints and dry valley sun make sunscreen and a brimmed hat useful.
summer