Fodor's Expert Review Turtle Bay Exploration Park

This peaceful downtown park has 300 acres of walking trails, an aquarium, an arboretum and botanical gardens, and many interactive exhibits for kids. The main draw is the stunning Santiago Calatrava–designed Sundial Bridge, a metal and translucent glass pedestrian walkway, suspended by cables from a single tower and spanning a broad bend in the Sacramento River. On sunny days the 217-foot tower lives up to the bridge's name, casting a shadow on the ground below to mark time. Access to the bridge and some trails is free, but the museum and gardens charge admission.