Drove out to Caddo Lake for an individual to look for two very special rings. She is a nature photographer by trade (& a very good one) and had taken her rings off and placed them in the fold of her lap/shirt while in the kayak to get a pic of a bird. Excited about the pic she continued to kayak around the cove snapping pictures and when it was time to head back in she paddled to the spot where she entered the lake. Feeling the solid ground beneath the kayak she stood up to exit the craft and her rings plopped in the murky water. In her panic to recover the rings she placed her camera equipment on shore and tried to feel around beneath the water to no avail. In the span of just a few hours she had purchased two different types of metal detectors and even tried to shovel clumps of Muddy Muck from the edge of the lake. However, a park ranger did not see the humor in that, made her stop and told her to call someone professional but that she was not to dig again. She called us. Due to the metal garbage in the lake we had to first remove all things that set off our detectors and then proceed to concentrate on the jewelry specified sounds. One of her rings belonged to her mother (who recently passed away) and the other was her engagement ring. After a couple hours searching thru the mud and the muck We found one beautiful ring which had belong to her mother. The engagement ring is still elusive and we will have to travel back to continue the search another day.