How does a swim-through differ from a coral cave?

A swim-through is a passage in an underwater environment that typically allows divers to swim from one side to another while still providing visibility to both entrances. This characteristic is significant because it enhances safety and situational awareness for divers. Being able to see the exit from the entrance enables them to navigate confidently and helps prevent potential disorientation inside the passage.

In contrast, coral caves might not provide such visibility; they could be more intricate and may have sections that are darker or obscured, limiting what divers can see while inside. Overall, the ability to clearly see both entrance and exit is a defining feature of swim-throughs, making them a preferred choice for divers seeking a straightforward exploration experience without the increased risks associated with reduced visibility found in more complex cave structures.