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The short Upper Bay Trail arcs around the northern edge of the Upper Newport Bay Nature Preserve near the Newport Beach–Irvine city line. The protected estuary, home to six rare avian species, is considered to be one of the best birdwatching areas in North America.
The trail itself is situated on a bluff, offering expansive views of the bay. At the trail's eastern end on Jamboree Road, continue south on the sidewalk over the bridge to travel a much longer route into Irvine on the San Diego Creek Trail.
Parking for the Upper Bay Trail is available at the Upper Newport Bay Nature Preserve Interpretive Center on University Drive, southeast of Irvine Avenue. A small parking fee may be charged.
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