The presence of sharks in Greek waters is a common concern for visitors, given the region’s popularity for marine activities. This article clarifies the reality of sharks in Greece, addressing their existence and the minimal risk they pose to humans.
Shark Species Found in Greece
The waters surrounding Greece, part of the larger Mediterranean Sea, host a diverse range of shark species. Approximately 47 shark species inhabit the Mediterranean, with around 33 recorded in Greek seas over the past ninety years. These include a variety of sizes and behaviors, from smaller, less imposing species to larger, more recognized predators.
Among the more commonly encountered species are the Blue Shark (Prionace glauca) and the Shortfin Mako (Isurus oxyrinchus). Blue sharks are pelagic, occasionally venturing closer to the coast. Shortfin Makos are known for their speed and agility, often found in deeper waters, though they may approach shore when pursuing prey like tuna or swordfish. Other species present include the Basking Shark, a filter feeder that can reach significant lengths but poses no threat to humans, and the Bluntnose Sixgill Shark, an ancient deepwater species. The Great White Shark (Carcharodon carcharias) has also been sighted in Greek waters, particularly in areas like the Ionian Sea, though such occurrences are rare.
Understanding Shark Encounters and Risk
Despite the presence of various shark species, unprovoked shark encounters in Greek waters are exceedingly rare. Historical data over the last 170 years indicate a very low number of recorded incidents, with 15 to 27 total attacks and few fatalities. The last confirmed unprovoked shark attack in Greece occurred several decades ago, with no incidents reported in the last three decades.
This low incidence is largely due to the typical behavior and habitat preferences of most shark species in the region. Many sharks, including larger predatory types, prefer the deeper, open waters of the Mediterranean, away from coastal swimming areas. Their natural prey is abundant in these deeper environments, reducing the likelihood of them seeking food near crowded beaches. The ecosystem of the Mediterranean does not typically support large populations of the more aggressive shark species in coastal zones.
Staying Safe in Greek Waters
Practicing general ocean safety measures can minimize interactions with marine life, including sharks. Swimming in designated areas with lifeguards is advisable. Paying attention to local warnings or advisories about marine conditions or wildlife activity is also a good practice.
It is generally recommended to avoid swimming during dawn or dusk, as these are periods when many marine animals, including some shark species, are more active. Swimming with a companion rather than alone enhances safety. Avoiding areas with active fishing, which might attract marine life, and refraining from wearing shiny jewelry or bright colors that could be mistaken for fish scales, can also reduce the chances of an unintended encounter. Additionally, avoid swimming with open wounds, as blood can attract some marine species.