In search of this place, I descended from the water tower, took a right and then a left turn to a forest trail. I stumbled on a sign a blue frog area ahead. With fear to not come across any of the strange beasts, I increased the pace. I came across a crossroads and I was a bit lost. So I decided to quickly hide the cache. The area is a bit damp and adorned with moss. I had to dodge a couple of fast runners and successfully completed the mission.