I went exploring in a creek today.The creek becomes a long stretch of walls and small tunnels going under the road.Really neat and covered in graffiti/art etc.Anyway, I was looking into this tunnel because I heard water rushing into something. I found a long pole with something black on the end.I then heard what I thought was a beeping sound.Now I think I may have spooked myself.I saw a survey station down the creek a bit and I assume this pole was something they measured water flow with.Anyone know what it was ? (sorry for the shitty picture)
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