PHILADELPHIA (CBS) - The Coast Guard reopened all ports from Philadelphia to North Carolina following Sandy.

Mariners are advised to use extreme caution when traveling throughout the ports due to the possibility of shoaling and debris.

The Coast Guard is strongly advising recreational boaters and commercial traffic to carefully consider any trip. If boaters must be on the rivers, they are urged to exercise extreme caution, which includes traveling at a safe speed and limiting transit on the rivers to daylight hours.