Waters are warm these days, with being near the 80 degree mark and that has the fish going deep for the cooler waters. Fishing deeper water requires good electronics and an understanding of what they are showing you and how to fish that structure.
One location that I have found, is a very small sunken island that is about the size of a boat, and is void of much vegetation because of the depth. Utilizing the Sonarphone Tpod with the Navionics application this has allowed for creating current contour information on daily trips. http://www.backwoodssportsman.com/reports-1.html