The concrete base adds even extra weight, so for experience an interior wall or accent you need to make sure the wall and flooring can withstand that extra. Even just using natural Stone veneer for High-impact interiors on a fireplace can mean reinforcing the floor or worse--discovering that it's simply not safe to achieve because it can't be reinforced properly Stone veneer for structural enhancements whatever reason.
Down over the floor ultimately first junction room will be the route towards Signature Room, a good trip for first time cavers, with lots of good sticky mud. The well-worn path up the rock left is tricky to climb, but easy to come down on the way out. There can be a sloping rock in the core of the passage that can have a distinct crack on your foot step followed by another sloping rock with one small worn formation in the very center that provides another foot step to reach the top of the climb.
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