Castle Crest Wildflower Trail. This short half-mile loop that passes through a spring-fed meadow is one of the park's flatter hikes. Wildflowers burst into full bloom here in July. Easy. Crater Lake National Park, Oregon, 97604.
Godfrey Glen Trail. This 1-mile loop trail is an easy stroll through an old-growth forest with canyon views. Its dirt path is accessible to wheelchairs with assistance. Easy. Crater Lake National Park, Oregon, 97604.
Annie Creek Canyon Trail. This somewhat challenging 1½-mile hike loops through a deep stream-cut canyon, providing views of the narrow cleft scarred by volcanic activity. This is a good area to look for flowers and deer. Moderate. Mazama Campground, Mazama Village Rd., Crater Lake National Park, Oregon, 97604.
Boundary Springs Trail. If you feel like sleuthing, take this moderate 5-mile round-trip hike to the headwaters of the Rogue River. The trail isn't well marked, so a detailed trail guide is necessary. You'll see streams, forests, and wildflowers along the way before discovering Boundary Springs pouring out of the side of a low ridge. Moderate. Crater Lake National Park, Oregon, 97604.
Watchman Peak Trail. This is one of the park's best and most easily accessed hikes. Though it's just more than 1½ miles round-trip, the trail climbs more than 400 feet—not counting the steps up to the actual lookout, which has great views of Wizard Island and the lake. Moderate. Crater Lake National Park, Oregon, 97604.
Cleetwood Cove Trail. This strenuous 2¼-mile round-trip hike descends 700 feet down nearly vertical cliffs along the lake to the boat dock. Be in very good shape before you tackle this well-maintained trail—it's the hike back up that catches some visitors unprepared. Bring along plenty of water. Difficult. Crater Lake National Park, Oregon, 97604.
Mt. Scott Trail. This strenuous 4½-mile round-trip trail takes you to the park's highest point—the top of Mt. Scott, the oldest volcanic cone of Mt. Mazama, at 8,929 feet. The average hiker needs 90 minutes to make the steep uphill trek—and nearly 60 minutes to get down. The trail starts at an elevation of about 7,679 feet, so the climb is not extreme, but the trail is steep in spots. The views of the lake and the broad Klamath Basin are spectacular. Difficult. Crater Lake National Park, Oregon, 97604.
Pacific Crest Trail. You can hike a portion of the Pacific Crest Trail, which extends from Mexico to Canada and winds through the park for 33 miles. For this prime backcountry experience, catch the trail off Highway 138 about a mile east of the North Entrance, where it heads south and then toward the west rim of the lake and circles it for about 6 miles, then descends down Dutton Creek to the Mazama Village area. You'll need a detailed map for this hike; check online or with the PCT association (www.pcta.org). Difficult. Crater Lake National Park, Oregon, 97604.