These weren't ordinary spiders they got here, these were giant spiders. And not like five inches giant spiders, but rather five feet, or even more!
Never having seen something like this before, you venture to the place marked as the Spider Cave, and soon found exactly what it sounded like. A large natural looking cave lied before you. As you entered, you noticed the artificial torches lightening up the place and the vast open space the enclosure had, its true size hidden in the dark. A thick wall of safety glass surrounded the opening of the enclosure, a door with some stairs downwards further into the cave being the only way in. Unfortunately, there was nothing for you to see but huge webbings and cold rock.
There wasn't much for you to do now, you should just leave. Unless of course, you want to check out if that door is already locked, you are effectively the first visitor after all . . .
