From Orange County and San Diego County:

• Take the 15 fwy towards Las Vegas 
• Exit Bear Valley Road - turn RIGHT
• Go about 5 miles to Spring Valley Lake Parkway -turn LEFT
• Go to Country Club Drive - turn RIGHT
• Spring Valley Lake will be on your left side. Go the the east side of the beach (second parking lot)
• If there is a life guard at the gate - tell him/her you are there for the Spring Valley Lake Regatta