From the Webster St. tunnel:
Turn left onto Lincoln, go one half mile,
Forbidden Island is on the right.

From 29th Ave./Fruitvale Ave.:
Fruitvale becomes Tilden Way for one half mile,
then becomes Lincoln Avenue.
Forbidden Island is one & one half mile
up Lincoln on the left.

Public Transportation:
AC Transit O Line (Costs $3.50, includes one-use transfer, arrives one block down from Lincoln on Santa Clara)
AC Transit 19 Line (Costs $1.75, to BART, 12th St. and Fruitvale)
AC Transit 51 Line (Costs $1.75, to BART - 12th St. only)
NEW! AC Transit 851 Line (All-Night version of the 51 line, now you can stay out later and still get public transportation!)