A difficult spot to find without a depth sounder. The Langton Grange sank in 1909, hitting Bell Rock. Some Swansea divers located her wine storeroom and brought up some bottles of wine and champagne still corked. A dive not for the inexperienced, especially on the North going current. Slack water is about 3 hours after low water and high water, Milford Haven.
Visibility is good.
Launch out of Pothclais or Whitesands. The Garreg Y Fram. Very pretty dive. The slack on the Fran is one and half hours after HW, after which it runs for three hours to the east, and is followed by a small slack. It then runs to the west for nine hours.