Cala Moresca is generally safe for swimming and excellent for snorkeling. The sheltered cove provides calm, clear waters ideal for exploring marine life. The rocky seabed and granite formations require water shoes to prevent cuts. Entry points can be uneven, so care is needed when entering. Currents are typically minimal within the cove, making it suitable for moderate swimmers. Snorkelers should stay aware of boat traffic, as the proximity to Golfo Aranci means occasional watercraft. No lifeguards are typically present, so swim responsibly and never alone in unfamiliar waters.

Cala Moresca is best visited during May through June and September through early October for fewer crowds while maintaining excellent snorkeling visibility. Water temperatures are comfortable for swimming from June through September. July and August bring peak tourist numbers and warmest conditions but can feel crowded in this small cove. Early morning visits offer the calmest waters and best light for underwater photography. Avoid windy days when waves reduce visibility. The shoulder seasons provide pleasant weather, clearer waters, and a more intimate experience in this scenic granite-backed setting.