Investigate the amazing sea life lurking in the rockpools at Porth Y Pwll. Bring a net and bucket if you have them, and shoes that you don’t mind getting wet! This is a family event - children must be accompanied by an adult.

A great place to spot sea birds and waders but the present day tranquillity belies the violent tectonic event that created the estuary, the evidence still preserved in the geology lining the second part of our walk. Discover impressions left in the rock by the roots of coal measure trees, and a dolerite dyke, possibly formed when the Atlantic Ocean opened up..

The walk down to St Nidan’s Church, along footpaths, lanes and the cobbled foreshore of the Menai Straits with views to Caernarfon Castle and the mountains of Snowdonia. Hear about an the Roman attack in the 1st Century AD and opposing battle-line, thick with men and weapons, woman running between them their hair flowing, carrying torches; and Druids among them, pouring out frightful curses with their hands raised high to the heavens.