Dinas Dinlle is a small coastal hamlet on the north coast of Gwynedd in Wales, a few miles west of Caernarfon. It sits beside a long shingle and sandy beach with dunes and wide sea views towards the western Llyn Peninsula and the mountains of Snowdonia, making it popular with walkers, birdwatchers and watersports enthusiasts.
The local economy leans on tourism - caravan parks, holiday cottages and seasonal visitors - while agriculture remains important inland. The Welsh language and local culture are strong, and the place name 'Dinas' (fort) hints at older settlement; today the hamlet is valued for its quiet coastal character and easy access to coastal walks and nearby historic sites such as Caernarfon Castle.