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From Las Vegas:
Travel South on I-515 which merges onto US-93 South. Continue on US-93 South through Henderson to Boulder City. Once in Boulder City, turn left onto US-93 Truck Route (across the Hoover Dam). Drive South 14 miles on Highway 93. Turn right onto Willow Beach Road. Follow the signs and drive 4 miles down to the marina.
From Southern California:
Travel North on I-15 to Barstow, CA. Merge onto I-40 to Kingman, AZ. Take US-93 North and travel 56 miles. Turn left onto Willow Beach Road. Follow the signs and drive 4 miles down to the marina.