Definition: Portholes are round or oval windows found aboard ships, primarily cruise ships, that provide natural light and ventilation to cabins and interior spaces below the waterline. Do portholes open? This question has practical relevance as cruise passengers often desire fresh air and unobstructed views during their journeys.
Portholes serve several benefits. Historically, ships had small windows in cabins for light and air, but portholes revolutionized naval architecture, allowing larger windows. Larger windows meant more natural light, improved cabin ambiance, enhanced ventilation, and increased safety in the event of emergencies. Notably, portholes can be sealed shut to ensure watertight integrity in adverse weather conditions.