S TA R T Giant Forest, Sequoia National Park 5 862 days miles FINISH Avenue of the Giants, Humboldt Redwoods State Park INSIDE TIP These destinations are deservedly popular, so consider traveling in fall or spring instead of summer; wherever you go, reserve lodging far in advance. -WA R M I N G S TO P Giant sequoia trees on the Congress Trail (especially the House and Senate groups) YOS E M I T E N AT I O N AL PARK