Blue Heron Bridge at Phil Foster Park is a shallow shore dive under the bridge in Riviera Beach that rewards slow searching more than distance. The route works around pilings, the snorkel trail, and small wreck and reef features, so you spend time looking for macro life instead of covering ground. Timing matters more than effort: plan for slack high tide, stay clear of the boat channel, and expect the site to change quickly once the tide turns. It is a strong choice for photographers, snorkelers, and newer divers who want an easy entry with a lot to find.