hello everybody, we will be sailing from Panama up to NOLA late April and May. We will stay at south shore in NOLA. I am looking at the charts and seeing some things that I do not understand. Such as vertical clearances listed as low a 4' by some of the bridges. HUH? What is the best way to sail in from the Gulf? through the rigolets or up the canal by the sanctuary? any local knowledge would be much appreciated.