Chapel Porth Beach maps beach info maps weather & tides surfing Select a map type from the following providers. All are at the same location and to the same scale Google map Bing map OS map Open Street map How to get to Chapel Porth Beach Head into St Agnes and take the first left upon entering the village. Chapel Porth is 2 miles out of the village and signposted reasonably well. Nearest town St Agnes Postcode TR5 0NS OS grid ref. SW 6954 4954