Christmas Pot, Gaping Gill
Done as far as the beginning of the Drainpipe. Rope lengths given on the CNCC topo are low, consider bringing an extra 5m for each. That said, some of the pitches are free-climbable (see the NFTFH entry on Grange Rigg Pot).
The leftmost, lowest squeeze (against the left wall at the bottom of the boulder choke) is apparently the correct route to access the Drainpipe. I haven’t tried this (although tried a few other squeezes in the area, unsuccessfully).