Tioga Road is seasonal, so this hike is available only while the road is open. Snow can linger in the first weeks after opening, and early-summer meadows can be muddy or marshy. Stay on the tread and walk through puddles rather than widening the path around them. Dogs are not allowed on Yosemite hiking trails.
Use the public lot on the Tuolumne Meadows Lodge road, about 100 meters west of the signed trailhead. The lot beside Tioga Road with a Dog Lake sign is a different access, and the main Lodge parking area is reserved for guests. When the Lodge is operating, it has restrooms and basic snacks; the broader grill and cafeteria are about a mile west, off the route.