Guided & commented tours

From 1 September until 31 March

From 1 September until 31 March

On Wednesday 11 Feb , On Wednesday 18 Mar , ... On Wednesday 8 Apr

On Wednesday 11 Feb , On Wednesday 11 Mar , ... On Wednesday 25 Mar , On Wednesday 8 Apr , On Wednesday 6 May , On Wednesday 20 May

From 15 October until 31 May

From 29 September until 14 June

From 21 September until 18 June

On Wednesday 11 Feb , On Saturday 14 Feb , ... On Wednesday 18 Feb , On Saturday 21 Feb , On Wednesday 25 Feb , On Friday 27 Feb , On Monday 2 Mar , On Friday 6 Mar , On Wednesday 11 Mar , On Friday 20 Mar , On Wednesday 25 Mar , On Wednesday 1 Apr , On Friday 3 Apr , On Wednesday 8 Apr , On Saturday 11 Apr , On Wednesday 15 Apr , On Saturday 18 Apr , On Wednesday 22 Apr , On Monday 27 Apr , On Saturday 2 May , On Wednesday 6 May , On Saturday 9 May , On Wednesday 13 May , On Saturday 16 May , On Wednesday 20 May , On Friday 22 May , On Monday 25 May , On Wednesday 27 May , On Saturday 30 May , On Wednesday 3 Jun , On Sunday 7 Jun , On Wednesday 10 Jun , On Friday 12 Jun , On Wednesday 17 Jun , On Saturday 20 Jun , On Wednesday 24 Jun , On Monday 29 Jun

From 25 December until 30 June

From 1 October until 30 June

From 1 September until 30 June

On Wednesday 11 Feb , On Wednesday 18 Feb , ... On Wednesday 25 Feb , On Wednesday 4 Mar , On Wednesday 11 Mar , On Wednesday 18 Mar , On Wednesday 25 Mar , On Wednesday 1 Apr , On Wednesday 8 Apr , On Wednesday 15 Apr , On Wednesday 22 Apr , On Wednesday 29 Apr , On Wednesday 6 May , On Wednesday 13 May , On Wednesday 20 May , On Wednesday 27 May , On Wednesday 3 Jun , On Wednesday 10 Jun , On Wednesday 17 Jun , On Wednesday 24 Jun , On Wednesday 1 Jul , On Friday 3 Jul , On Wednesday 8 Jul , On Friday 10 Jul , On Wednesday 15 Jul , On Friday 17 Jul , On Wednesday 22 Jul , On Friday 24 Jul , On Wednesday 29 Jul , On Friday 31 Jul , On Wednesday 5 Aug , On Friday 7 Aug , On Wednesday 12 Aug , On Friday 14 Aug , On Wednesday 19 Aug , On Friday 21 Aug , On Wednesday 26 Aug , On Friday 28 Aug