The ambitious InSEA project, led by Italy’s INGV and financially backed by the Italian Ministry of Research, leverages traditional telecom cables for environmental monitoring, without compromising data quality. By integrating sensors into vast 21km cables and repeater housings, a remarkable SMART cable system was born. Despite deployment challenges, the use of advanced sensors ensured successful implementation. Initial data hints at successful system functioning, prompting anticipation for a comprehensive analysis following the monitoring phase.