I also have a Garmin 162 as well as the Waterwys and Lights CD and the Bluechart. THe Waterwats and Lights will get you "off the land" with its mapping software. IT will show you the buoys and wrecks, but not the topography of the bottom. Here in the Chesapeake the Waterways and lights seems to be more accurate for the wrecks whereas the BlueChart is a replica of the NOAA charts.
I find that using the two CDs together (on the home computer) is a real benefit. I used the Waterways and Lights for quite some time pior to getting the Blue Charts and I did quite well with it. I like the BlueCharts because I use it to fish the dropoffs and contours in the bay for flounder and offshore for the tuna etc.
So, after all that the answer is yes Waterways and Lights will get you "off the land".
Sandtiger
Member Peninsula Salt Water Sport Fisherman's Assoc. (
http://www.pswsfa.com)