Emerald Bay State Park

Emerald Bay State Park is the crown jewel of Lake Tahoe and one of the most photographed locations in the Sierra Nevada. The bay itself is a sheltered inlet of impossibly turquoise water with Fannette Island -- Tahoe's only island -- at its center, surrounded by granite peaks and dense forest. The viewpoint from the overlook on Highway 89 is one of the most iconic vistas in California.

The main family activity is hiking the 1-mile trail from the parking area down to Vikingsholm, a 38-room Scandinavian castle built in 1929 by heiress Lora Josephine Knight. The castle is an architectural marvel -- hand-hewn timbers, sod roofs, dragon carvings, runic inscriptions, and period Scandinavian furnishings. Guided interior tours run late May through September.

The exterior and grounds are accessible anytime.

The beach at Vikingsholm is a family paradise. Crystal-clear water (you can see the bottom 50+ feet out), granite boulders for climbing and jumping, and views of Fannette Island and the surrounding peaks. The water is cold (60-68°F in summer) but refreshing. Kayaking to Fannette Island from the beach is a popular family excursion.

The critical planning detail: the hike DOWN to Vikingsholm is easy and fun (1 mile, 500 feet descent). The hike back UP is strenuous -- a steady climb that exhausts young kids. Bring water, go slow, and build in rest stops. Most families manage it fine with encouragement, but be prepared for some complaining on the return.

Parking is the other challenge. The Emerald Bay parking area on Highway 89 fills by 9 AM on summer weekends, and there is no overflow lot -- cars must continue driving. Arrive early or visit on a weekday. The Bayview trailhead (south side of the bay) offers alternative access with its own parking lot.