Kefalonia

Dive with licensed local operators, especially on wreck, cavern, or heritage sites. Carry a computer, SMB, and audible surface signal. HMS Perseus requires advanced or technical planning because the wreck lies around 52 m; do not pressure an operator to take you without recent deep experience. On snorkel and freedive days, use floats and avoid harbor approaches. Plan no-fly time before leaving from EFL, and avoid heavy drinking after repetitive dives.

Kefalonia has a general hospital in Argostoli and island health services, but divers should treat serious decompression illness as an emergency coordination and evacuation scenario unless DAN and local responders confirm the current care pathway. In a life-threatening emergency, call local emergency services first, start oxygen if trained and available, and contact DAN Europe for dive-medicine guidance. Travel and dive insurance with evacuation and hyperbaric coverage is strongly recommended.

Kefalonia is important for loggerhead turtles, Posidonia seagrass, and rare monk seal habitat. Watch turtles from a respectful distance, do not feed or chase them, and keep lights away from nesting beaches at night. Never enter suspected seal caves. Maintain buoyancy over seagrass, do not break urchins for fish, and never remove amphorae, shells, or wreck pieces. Support operators involved in cleanups, turtle awareness, monk seal monitoring, or scientific diving.