The Adelphi Spa The Adelphi Spa The Adelphi Portrush, Main Street, Portrush, BT56 8BN, Co. Antrim, Northern Ireland Spas.ie Vouchers Not Accepted Spa Type: Hotel Spa Hotel Rating: 0044 28 7082 5544 stay@adelphiportrush.com Website Nearby Spas The Spa at Dunluce Lodge The Spa at Culloden The Tranquil Rooms Aura Day Spa The Secret Day Spa View all Spas in Antrim WIN! Overnight Spa Break for 2 worth €580 at Dunboyne Castle, Co. Meath Ends 23rd Aug Enter