Either side of the Dyfi estuary sit Aberdyfi and Borth/Ynyslas beaches, both about 20 minutes drive from the cottage.
Aberdyfi is a bustling seaside town, with local cafes and galleries to explore. We would recommend driving through Aberdyfi (having picked up some fish and chips from Shelly's Fish and Chips in town) to the sand dunes beyond, right on the edge of the estuary and more peaceful than the beach in the centre of town.
Ynyslas, right on the edge of the estuary and about two miles north of Borth, is the most rugged of the local beaches. It is probably the least child friendly, as the tides can be quite fierce and the sand is soft. With its golden sand and fantastic views, it is wonderful for a windy walk at low tide.
Borth is a sand and shingle beach (mostly shingle if the tide is high) and has been the site of many a family picnic over the years. Borth is also host to the Animalarium, which is a small zoo popular with children, making Borth a good option for a family day out.