OK, here is the info on Coulon from the IAC Boaters Site.
Gene Coulon Memorial Beach Park
King County
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Waterbody: Lake Washington
Site Manager: Renton Parks Department (425) 430-6600
Nearest City: Renton
Transient Moorage
# Type Description
12 Trans Moorage-Open 21 to 25 feet
12 Trans Moorage-Open Total
Boat Launch Type
# Type Description
2 Launches Loading float
8 Launches Ramp - concrete, plank
Car Parking
# Type Description
4 Car Parking Paved and striped
Trailer Parking
# Type Description
96 Trailer Parking Paved and striped
Description:
Coulon Park is a 57 acre facility on the south end of Lake Washington featuring 3 picnic shelters, boat launch, swimming beach, 2 restaurants, snackbar, volleyball pits, playground and passive areas.
Directions:
Southbound on SR405 in north of Renton, exit the freeway at the Sunset Boulevard (Exit 5 ) exit; Turn right on Park Drive and go .1 mile. Turn right onto Lake Washington Boulevard and go .1 mile; Turn left at the stop sign to enter Coulon Beach Park; From the park entrance, continue straight for 1 block, then turn left and follow the roadway around the parking lot.