Ryan'S Castle Run

Ryan's Castle Run is a coastal dive site off St Peter Port, Guernsey. Access is straightforward from the harbor area, with shallow entry points suitable for training and recreational dives. The site typically features a series of rocky outcrops and submerged structures that create varied topography from shallow plates to deeper walls, often explored on drift or wall dives depending on current. Expect clear to moderate visibility and temperate Atlantic conditions. Marine life commonly includes species typical of Guernsey waters such as wrasse, pike, gobies, blennies, and lobsters, with the potential to encounter small schools of seabream and conger eels around sheltered nooks. Remember to plan for tidal currents and check local guidance, as conditions can change quickly in this channel.