Need some help fishing the Delta

Been trying to find a spot to launch my kayak into the Delta near the Sacramento/Stockton area.  I would like to avoid paying launch fees so any spots near the sloughs would be great as long as it's legit.  Still new to kayak fishing so if anybody knows of the sloughs or street names, holler at me.  Thanks guys!

I do not have the answer, but I do want to hear what people have to say. I normally fish higher lakes, but this year that may never happen the way things are going!

Isn't there a Delta / Inland area on this forum?

http://www.norcalkayakanglers.com/index.php?topic=5443.0

thanks for the link! very helpful.

Downtown Stockton Marina which is located underneath the overpass is free. I'm launched there before and was free.

Stop in Rio Vista for Bait, head up AirPort Road, then Liberty Island road about 7 miles north (total)  Liberty Island Rd curves right (east) then Dead Ends.  This is where you park and put in,  off the rip-rap.  Lots of bank fishermen around just lock your truck.  There are two sloughs... one south of Hastings island and one north.  the northern most is good for sturgeon, the south is where youll find stirper (based on my experience).
Launching is easy but try to avoid low tide when leaving cause the rip-rap is steep ... and gravity sucks.
Keep an eye out for hooks-ups because i sometimes launch from Hasing Island (as a member) and i can always take one more with me.  I will hit that northern slough but much farther north where i can hit large striper. 
 
 Good luck.

Another free place to launch is Louis Park/Dads point in Stockton. Take the Monte Diablo exit and head west until you hit the Launch Ramps.  Its less than a mile once you exit I-5