Geared up ice diver in dry suit walks into water and sits on edge of lake ice

congelation ice lake ice geared up ice diver diver scuba dry suit water winter entry point extreme sport ice dive penetration diving technical dive lake drysuit subzero icy water frozen exposure suit specialized equipment icy technical diving diving man skills overhead environment adventurer recreation scuba diver frozen lake freezing wellbeing extreme immersion exposure cold challenge winter wellness dive site submerge dive extreme cold sweden leisure professional high risk environment exposureprotection