Busy,
The launch at Friends Landing will handle a 18 ft boat. There are also launches at Montesano and Cosmopolis that are good launches without going all the way to Westport. To get to the Montesano launch exit at Montesano, turn left at the stop sign (Monte Square market/gas station will be right in front of you), follow the road to just past the lumber mill (about a mile or so) and there will be a turnoff (unmarked) on the left, this leads to the WDFW ramp. If you go over the river you have gone to far. Make sure to obey the 25 MPH speed limit by the mill, the cops work that stretch hard!!!
Now having said that the low tide on Saturday the 5th is 6:50 AM in Aberdeen and is a minus 0.9 which will make the launching at Friends tough for all, especially with the river down from no rains. The launch at Monte at that low tide will not be a picnic either. The adjustment for Cosmopolis is +9 minutes and for Monte it is +1 hr & 39 minutes so all may need to plan accordingly. For Sunday it is a -.7 ft @ 7:35 in Aberdeen. Not to scare anyone off, just to provide some info to all.
I personnaly plan on just fishing Saturday and then going clam digging Saturday evening. It looks like I will not be staying overnight as I have some fall baseball games to work on Sunday in Oly.
Good luck and tight lines, Jeff laugh laugh