Yes, visiting the Cinque Terre is considered physically strenuous, as the region is characterized by steep, vertical terrain and thousands of ancient stone steps. While the five villages (Monterosso, Vernazza, Corniglia, Manarola, and Riomaggiore) are connected by a convenient train line, actually "seeing" the towns involves constant uphill and downhill walking. For example, reaching the village of Corniglia from the train station requires climbing the Lardarina, a brick staircase with 382 steps. The famous "Blue Trail" (Sentiero Azzurro) that connects the villages is a rigorous hike with narrow paths, uneven ground, and significant elevation changes. In 2026, park authorities strongly advise wearing proper hiking boots; flip-flops are actually prohibited on the trails and can result in heavy fines. For those with limited mobility, the trains and local "green buses" provide an alternative, but even navigating the small, hilly streets within the villages themselves requires a baseline level of fitness and cardiovascular endurance.