Guided visit to La Rochelle's towers: Saint-Nicolas, de la Lanterne, and de la Chaîne. Explore maritime history, climb for panoramic views of the city and Atlantic coast. Duration: 1h30. Hours: 10h-13h and 14h15-17h30. Not accessible for reduced mobility due to stairs. Free entry for under 18s, EU citizens 18-25, disabled, unemployed, ICOM card holders with ID.