article_snippet.sent: Known as St Catherine's Island, and home to the historic tower and gun rooms, can currently only be reached by crossing a beach during low tide, which happens for only six hours per day.
article_snippet.sent: The tides limit pedestrian access to St Catherine's Island in Pembrokeshire to one week in two and for a maximum of six hours per day.'
article_snippet.sent: Currently, the fort on St Catherine's Island can only be reached by crossing a beach during low tide .
highlights_snippet.sent: Currently, St Catherine's Island in Pembrokeshire can only be reached by crossing a beach during low tide .
  