Walk around the baylands at Schollenberger, then let Laika run at Rocky.
http://maps.google.com/maps?f=q&hl=en&geocode=&q=schollenberger+park,+petaluma,+ca&ie=UTF8&ll=38.227275,-122.600448&spn=0.011648,0.022874&t=h&z=16&om=1
Click a pic...