Argelès-sur-Mer offers a good mix of beach activities, mountain walks, and Catalan heritage. The town sits at the foot of the Albères range, so you are never far from a trail, and the coastline shifts from sand to rocky coves within a short walk.
The big draw is the Sentier Littoral coastal path south to Collioure — three to four hours of cliff-edge walking, with cove-swimming options. Inland, the 14th-century church of Notre-Dame dels Prats anchors the old village; Casa de les Albères is a small Catalan ethnographic museum nearby. The early-1900s Château de Valmy sits on the hillside north of town, its surrounding park open to all. The Mas Larrieu nature reserve protects a fragment of natural coast north of the beach, and the sober memorial at the Argelers concentration camp site marks one of the worst chapters of modern French history.
For walkers and cyclists the Albères foothills behind town have well-marked trails — from a gentle morning loop to a full-day climb to the ruined Cathar fortress of Perapertusa further inland. Wind and water-sports operators cluster around Plage des Pins; the rocky creeks near Plage des Pins and Le Racou are good for snorkelling and scuba.