Warning - Who knows!

I went for a walk around Roughrigg reservoir this afternoon after dropping of daughter K in Glasgow.
No idea what this sign said, but it should have said, "Don't go round this reservoir because the path has not been used for a few years and some parts are are a mystery." 
Did get round OK in the end though. Spoke to the farmer at the end who had come down to check if Jude and I were wrong uns, but was happy we were well meaning wanderers not planning a rave or going to set the car on fire.