Launch sites

I will be spending several days in Manchester and was wondering if there were good places to launch from in the area.  I have Wheels (good on hard surfaces not so good on sand.)  I know of three one is navarro, the harbor in point Arena the other is in elk.  Are there more in this area?

Thanks for the help.

There's a couple of spots on Light House Rd. that I've carried down my boat.  Well, one spot anyway.  Where was it?  6 telephone poles back from the lighthouse gate.  I've always wanted to drift down the Garcia River but it would be a long hike back.  From the mouth it's less then a mile paddle  to Arena Rock.   Dave Batt