Tuesday 11th September: meet at 10:00 at the Window on Wild Lindisfarne, on the left of the path towards the Castle. Grid reference NU129419.
The Holy Island of Lindisfarne is a place of transition. It is at the edge of the sea and twice every 24 hours is transformed into an island by the incoming tide. Its remoteness was its appeal for the monks of Lindisfarne giving seclusion and spiritual connection. The geology too can be explored by looking at transitions, passing across the boundary between one rock type to another and exploring what this tells us. Amongst other things we will explore what is the most northerly outcrop of the Whin Sill as it cracks and bakes the Carboniferous sedimentary rocks around it. The Whin Sill is the locking piece that secured the existence of Lindisfarne and defines the landform of the island providing a location for the castle and the lookout tower.
This walk will be approximately 4km and may involve some scrambling across beach rocks.
The walk is run as part of the Northumberland Coast AONB series of geo-diversity walks. Just turn up. A donation will be asked for to cover the costs of the walk, an amount of £10 is recommended, however Northumbrian Earth would like to make these walks accessible to all, so a donation will be asked of whatever you can afford and/or you think the walk is worth.