Both Ogof Gam (the usual entrance at path level) and Agen Allwedd (on a ledge higher up and slightly further along the cliff face) are gated. Ogof Gam (crooked cave) joins Agen Allwedd (keyhole rift) at "The Toolshed" just after the last wet crawl as has been stated. The way out of Agen Allwedd is up a climb on the left as you look out - it is taped off out of sight of normal caving traffic and there is a bat counter up there. The entrance rift to Agen Allwedd is awkward but was originally improved by putting chockstones along it. Agen Allwedd is gated by a metal pillar across it. The two caves were connected by digging the mud sumps seperating them using school dinner trays as drag trays in the 1950's. Later the route was enlarged for the two week surveying camp in Summertime held in the late 60's. Sally's Alley (after David "Sally" Seagrave) is part of Agen Allwedd, not Ogof Gam.