There is not a great deal left of this castle. It is surrounded on two sides by the sea, and parts of the castle have been falling into that sea for centuries. The setting is quite striking, and there is a small beach on the northeast side that is accessible from outside the castle grounds.
The main entrance is called the South Front, and you enter here by crossing the new wooden bridge across the old moat. You’ll see the castle well in the courtyard when you first enter, and you can wander over to it and peer 16 meters down if you want. The tower that survives in the South Front is called the 4-storey Fore Tower, most of which is inaccessible, though you can explore the ground level.
Moving along from the Fore Tower, away from the entrance, is the ruins of the chapel (only the columns remain). Just beyond that you can find a path down to the mine and the countermine, which offer far more for the visitor. These were dug during the siege of 1546-7, and are very notable as surviving examples of this common engineering feat used in sieges all over Europe. The Earl of Arran began digging the Mine in order to gain access to the castle in November 1546. The funny thing about this is that the start of the digging was in plain view of those within the castle; consequently, they began digging a countermine, to cut off the mine diggers. But this was not as easy as it might seem, because there was no way of knowing in which direction the mine was being dug, and several failed attempts were made before the mine was finally met by the countermine. You can explore the tunnels, and they are not as cramped as you might think.
Moving along the wall past the mine and countermine will take you towards the Kitchen Tower. But you will pass the spot where the Great Hall used to stand, until it fell into the sea in 1801, which must have been a disastrous thing to see, because this hall was supposed to rival those at Linlithgow Palace or Stirling Castle. You can climb up to the first level of the Kitchen Tower, though it is not the most interesting thing. The last tower, along the northern wall, is called the Sea Tower. Within its confines is the famed Bottle Dungeon, where several early Protestants were imprisoned.
The castle opens daily at 9:30am, and closes at 6:30pm April to September and 4:30pm October to March. Tickets cost £2.80 for adults and £1 for children. You can also buy a joint ticket at the cathedral to include
St Rule’s Tower.
Parts of the castle will be accessible to those in wheelchairs, and the toilets in the visitor centre are fully accessible.
This is a Historic Scotland property, so entrance is free to members.