Achla
Widely considered the finest beach on the island — a secluded bay on the northeastern coast where a river flows into the sea through a small delta of white pebbles and plane trees. Accessible by boat from Batsi or Chora (seasonal), by a very rough 4WD track, or by the trail from Vourkoti. No facilities; bring everything. The combination of river, forest, pebbles and turquoise sea is genuinely unlike any other beach in the Cyclades.
Tis Grias To Pidima
Northeast of Chora, reached by coastal path over the headland. The legendary rock formation jutting from the water gives the beach its name and its visual drama. Clear water, moderate pebble, no organised infrastructure. Best visited in the morning before the walk back to the Chora in the shade of the headland path.
Paraporti
The beach immediately below Chora — a wide pebble bay with good swimming, visible from the lanes above. Organised in season (seasonal café, some sunbeds), walkable from Chora in 10-15 minutes. The view back up at the neoclassical buildings of the capital from water level is one of Andros's most distinctive perspectives.
Batsi Beach
The island's most organised and family-friendly beach — wide sandy arc in the protected bay of Batsi village, with full beach services, watersports, tavernas above the sand and easy bus access from Gavrio and Chora. The most conventional beach holiday experience on the island; excellent for families and those who want amenities with their swimming.
Agios Petros
A long sandy beach north of Gavrio, easily accessible and usually less busy than Batsi. The site of the ancient Agios Petros tower — a Hellenistic circular tower dating to approximately the 3rd century BC, one of the best-preserved such structures in the Cyclades — gives the beach a layer of archaeology that most don't have.
Fellos
A shingle beach north of Gavrio with deep, clear water, wind exposure from the northwest (making it ideal for windsurfers), and a genuine feeling of remoteness despite its relative accessibility. The taverna at Fellos, To Steki Tou Andrea, under the pine trees above the beach, is one of the island's most reliably good for simple grilled fish.