I've snagged 2 poles in my lifetime

Has anyone ever used one of those bobber blue tooth fish finders?

Never caught a crab before (not counting my 1st wife) have caught plenty of turtles mostly when I used to go cat fishing

Hello all anglers I'll be headed to this lake with my kids in couple of weeks any tips are greatly appreciated. We're novices getting tad better. We practice strictly CPR so don't think we're looking to keep anything we don't. Thank you all God bless