Brought to North Wales in 1905 as the Prince Leopold from Southampton, the North Wales paddle steamer Rhos Neigr was used for passenger trips and excursions, based at Colwyn Bay. On 20 July 1908, she was providing a return trip from Llandudno to Blackpool with a crew of 19. She took on 80 passengers at Llandudno then proceeded to Rhos-on-Sea pier to pick up another 75 passengers. As Captain Smallman was midway between Llandudno and Rhos, a grinding noise was heard and water was found to be pouring into her forward section. The bulkheads were sealed and she headed for Rhos pier. Sounding the siren as a distress signal, the captain realised she would not make the pier and ran her aground on the beach to the north. The two small lifeboats aboard were used to take off some of the passengers. Fortunately her sister ship Rhos Trevor was anchored nearby and was able to assist. Later in the day she refloated on the rising tide and then started to sink rather rapidly. The crew were taken off and though her owner, Captain Hawthorn, got pulled underwater as she sank, he was saved. The wreckage is still visible at extremely low tides and is marked by a wreck buoy. It was reduced by explosives in 1964.
More info and some photos here