Try some small swim baits, different spinner baits and some worms. Also suggest yall get an earlier start. The fish often fallow the bait to deeper water after sun up and wont move shallow again till late evening or night time. Too hot & dangerous to late am-mid day on lewisville. If your casting toward the banks and cover u have to get out early especially during the hotter months. Might also consider some ponds around town. A creek or river may also have shade for yall during The day time. Kiddos lose interest fast especially if they arnt catching. Yak fishin aint for everyone. Just the way it is. Most that dont like it say its too much work (paddling) and dont feel safe (in a yak).