Digital photos in and above the Shrimp Bone Inlet aven, Cueva Hoyuca by Diane Arthurs
with Simon Cornhill. Photos show bolting around the 10m aven, the chamber above and the 2.5m climb.

Simon at the start of his bolt route, keeping out of the water.
Simon at the start of his bolt route, keeping out of the water.
Simon at the start of his bolt route, keeping out of the water.
Simon at the start of his bolt route, keeping out of the water.
Simon nearing the hole in the roof - a route which keeps out of the water.
Simon nearing the hole in the roof - a route which keeps out of the water.
Simon nearing the hole in the roof - a route which keeps out of the water.
Simon nearing the hole in the roof - a route which keeps out of the water.
Simon in the hole in the roof - a route which keeps out of the water.
Success! Simon after bolting a route bypassing the water dropping down the 10m aven.
The 24-year-old 2.5m ladder pitch in the chamber above - not to be trusted.
The chamber above the 10m pitch. Note the old rope dropping down the wet route.
The chamber above the 10m pitch. Note the old rope dropping down the wet route.
Calcited rope.
Abraded rope and decaying anchor.
Simon at the 2.5m climb.
Centipede? deep underground.
Simon at the 2.5m climb.
Simon at the 2.5m climb.
Simon above the 2.5m climb having climbed up to the left, not using the ladder.