Arikawa Bay Shore is generally safe for swimming due to its protected bay location, which creates calm water conditions with minimal waves and currents. The long, gradual shoreline makes it suitable for wading and family activities. However, as with most beaches in the Goto Islands, lifeguard services may not be consistently available, so swimmers should exercise personal judgment and caution. The bay's sheltered nature makes it safer than open-ocean beaches, but always check weather conditions and avoid swimming during storms or high winds.

Arikawa Bay Shore welcomes visitors year-round, with each season offering different experiences. Summer (June-September) is ideal for swimming and water activities with warm temperatures. Spring and autumn provide comfortable weather for long beach walks and photography with fewer visitors. The shore is especially popular for sunset viewing throughout the year, as the western exposure offers spectacular evening colors. Winter visits are quieter and better suited to contemplative walks rather than swimming, with the advantage of having the beach mostly to yourself.