Lake Jackson in Sebring is 25 to 30 feet deep at the deepest point in the middle. That's where the Specks have been lately. Lake Istokpoga is 6 feet deep throughout and really shallow for such a big lake. Most canals here are about 15 feet deep but some go down to 30 feet. Bottom structure varies. Most canals have lots of thick weed beds in some areas or just bare flat bottom. Lake Jackson has an uneven bottom with some weed patches. I haven't seen any artificial structures on any waters here "yet" on my sonar unit. Natural weed beds mostly seem to be where the Specks hang out and they are usually suspended at shallow to deep depths. Lately on the canals, they have been ranging from the bottom to suspended in about 12 feet of water toward the edges.