Swimming at Devil Island is extremely dangerous and not recommended. Water temperatures in the Weddell Sea hover around -1.8°C to 1°C year-round, causing rapid hypothermia within minutes. The beach serves as an expedition landing site rather than a recreational swimming area. Strong currents, floating ice, and the presence of leopard seals add additional hazards. Visitors typically explore the pebble shoreline during supervised zodiac landings as part of organized Antarctic expeditions, wearing insulated waterproof gear and following strict safety protocols established by expedition leaders.

The optimal visiting window for Devil Island is during the Antarctic summer, from November through March, when ice conditions may allow access and wildlife is most active. December and January offer the best combination of relatively milder weather (temperatures around -2°C to 1°C) and extended daylight hours for viewing resident Adélie penguin colonies. However, visits depend entirely on ice and weather conditions in the notoriously difficult Weddell Sea. February and March generally see fewer expedition vessels, offering a less crowded experience if conditions permit landing.