No Hero pictures don't need them.
to get from west bay into the pass is mark pretty good. you have to find the first marker which can be alittle tough. there are poles marked with orange road cones on top. i think you will need to have them on your left side on the way out. they zig-zag some too. if you get through there ok stay close to bird and mud island almost to the park. there is a shallow bar on the left side not over fifty yards away. if you go through with a bright sun and polarized glasses it is much easier to see. go slow and hang on tight!!!