Here is a way of changing to the target of the given symbolic link:

cd -P .

Here is how it works

user@host:~/tmp$ ls 

@a b

user@host:~/tmp$ file a

a: symbolic link to `b/c'

user@host:~/tmp$ cd a

user@host:~/tmp/a$ cd .

user@host:~/tmp/a$ cd -P .a

user@host:~/tmp/b/c$

You can alias it to

cdl='cd -P'

From the bash manual:

The -P option says to use the physical directory structure instead of following symbolic links