Just across the Bann river from the end of the Portstewart strand is Castlerock.
With accommodation and with a train stop on the main Belfast to Derry line. Unfortunately, there is no way to cross the river (although there has been talk of a future footbridge connecting the two) despite it seeming so close to the end of Portstewart. To get here you will have to drive via Coleraine.
We are just finishing our 3rd stay with NCPM! All the girls in the office are fab and the accommodation is 1st class! We already have our 4th and 5th stay booked!