10,000 SECONDS OF UNDERWATER JOURNEY: Theatricalised guided route
Sunday 6 September 2026
· 11:45
· Cartagena, Museo del Teatro Romano
Theatrical family route as part of the September activities of Cartagena Puerto de Culturas; departure/segments linked to the campaign around Carthagineses y Romanos.
08:00
· Santiago de la Ribera, Explanada Barnuevo de Santiago de la Ribera
Multi-day walking route. The official agenda lists this as the XXIV Vuelta al Mar Menor andando on 5 and 6 September 2026. The announcement confirms that the event takes place on both days; the exact day-by-day schedule/times are not fully broken down on the calendar page.