Are Old Wrecks Dangerous to Dive Near?
The proximity to a dive site's old wreck is a critical factor that can significantly influence the level of danger involved. For recreational divers, the risk assessment differs based on how close you get to the wreck.
The Dangers at a Distance
At a distance of approximately 50 meters, the threat from the wreck itself is minimal. The primary concerns are environmental factors such as the location, depth, and current. This distance provides a safe viewing point without the added risks of direct interaction with the wreck.
Approaching Closer to a Wreck
When you get closer to a wreck, the risks become more pronounced. One of the significant dangers is entanglement from nets and fishing lines that may be caught on the wreck. These lines can pose a serious threat to divers, leading to severe injuries or even death if not handled carefully.
Additionally, the wreck may serve as a habitat for various marine life. Just as you might encounter biting or stinging creatures near rocks, these could also be present within the wreck itself. Divers must be prepared to encounter unanticipated marine life both outside and inside the wreck, which necessitates heightened awareness and caution.
Entering the Wreck: A Special Hazard
If you plan to enter a wreck, the risks skyrocket due to the confined space and the potential for equipment entanglement. The inside of a wreck closely resembles cave diving but introduces an even greater risk of snagging equipment. This increased risk makes it less advisable to enter wrecks, especially for recreational divers without specific training.
Since you mentioned 'old wrecks', it is reasonable to assume that any toxic substances or hazardous materials, such as oils or explosives from military wrecks, have either dissipated or been neutralized over time. However, this does not diminish the specialized skills and equipment required for wreck diving.
Depth Considerations
For some wrecks, the depth can itself present a significant challenge. Some are positioned deeper than the usual recreational diving range of 60 meters, while others can be as deep as almost 90 meters. This increased depth adds another layer of risk, primarily related to decompression and the physiological challenges associated with deeper diving.
Even if the wreck is at a safe depth, the risks of snagging your scuba gear increase as you move along the deck or approach areas where the wreck may be unstable. Additionally, navigating inside the wreck can present unique challenges, such as dislodged objects or other structural hazards.
Professional and experienced divers with specific training are better equipped to handle the special hazards of wreck diving. Recreational divers should be mindful of their limits and consider the profound risks involved.
Ultimately, the choice to dive near old wrecks should be made with full awareness of the potential dangers and a thorough understanding of the necessary precautions. Always prioritize safety and consider the expertise and equipment required for successful and safe wreck diving.