Friends of the Urban Forest (FUF) is sponsoring Golden Gate Park Tree Tour on Bike this Sunday, Sept. 13th, 11 a.m. to 1 p.m. Here's FUF's announcement (and after reading this take a look at the other great work by FUF; most of NOPA's street trees were planted with FUF's assistance).
Gigantic New Zealand Christmas Trees with air root dreadlocks? Who knew?
There's more: check out Mike Sullivan's website (only a very proud tree-hugger features a pic of himself with a full-on bark embrace). Locate the more than 200 landmark trees in San Francisco, and find the two landmarks located in Panhandle Park with two more on NOPA's stretch of Masonic Avenue.